Cleanup: spelling

35 files changed, 45 insertions, 41 deletions

diff --git a/intern/cycles/render/session.cpp b/intern/cycles/render/session.cpp
index 157bb6d63d3..332f1fb6167 100644
--- a/intern/cycles/render/session.cpp
+++ b/intern/cycles/render/session.cpp
@@ -232,7 +232,7 @@ void Session::run_gpu()
     }
 
     /* Don't go in pause mode when image was rendered with preview kernels
-     * When feature kernels become available the session will be resetted. */
+     * When feature kernels become available the session will be reset. */
     else if (no_tiles && kernel_state == DEVICE_KERNEL_WAITING_FOR_FEATURE_KERNEL) {
       time_sleep(0.1);
     }
diff --git a/intern/ffmpeg/ffmpeg_compat.h b/intern/ffmpeg/ffmpeg_compat.h
index 863fbd40bb0..d254fa76ba9 100644
--- a/intern/ffmpeg/ffmpeg_compat.h
+++ b/intern/ffmpeg/ffmpeg_compat.h
@@ -364,7 +364,7 @@ void avcodec_free_frame(AVFrame **frame)
 #  define avio_size url_fsize
 #endif
 
-/* there are some version inbetween, which have avio_... functions but no
+/* There are some version in between, which have avio_... functions but no
  * AVIO_FLAG_... */
 #ifndef AVIO_FLAG_WRITE
 #  define AVIO_FLAG_WRITE URL_WRONLY
diff --git a/intern/ghost/GHOST_C-api.h b/intern/ghost/GHOST_C-api.h
index 0f735711b24..9c6a0861280 100644
--- a/intern/ghost/GHOST_C-api.h
+++ b/intern/ghost/GHOST_C-api.h
@@ -477,7 +477,7 @@ extern GHOST_TEventDataPtr GHOST_GetEventData(GHOST_EventHandle eventhandle);
 
 /**
  * Returns the timer callback.
- * \param timertaskhandle The handle to the timertask
+ * \param timertaskhandle The handle to the timer-task.
  * \return The timer callback.
  */
 extern GHOST_TimerProcPtr GHOST_GetTimerProc(GHOST_TimerTaskHandle timertaskhandle);
diff --git a/intern/ghost/GHOST_ISystem.h b/intern/ghost/GHOST_ISystem.h
index f0ceb7fb8ba..27be80a2f20 100644
--- a/intern/ghost/GHOST_ISystem.h
+++ b/intern/ghost/GHOST_ISystem.h
@@ -402,7 +402,7 @@ class GHOST_ISystem {
 #ifdef WITH_INPUT_NDOF
   /**
    * Sets 3D mouse deadzone
-   * \param deadzone: Deadzone of the 3D mouse (both for rotation and pan) relative to full range
+   * \param deadzone: Dead-zone of the 3D mouse (both for rotation and pan) relative to full range
    */
   virtual void setNDOFDeadZone(float deadzone) = 0;
 #endif
diff --git a/source/blender/blenfont/intern/blf_thumbs.c b/source/blender/blenfont/intern/blf_thumbs.c
index d6710b91539..4e44a85443d 100644
--- a/source/blender/blenfont/intern/blf_thumbs.c
+++ b/source/blender/blenfont/intern/blf_thumbs.c
@@ -109,7 +109,7 @@ void BLF_thumb_preview(const char *filename,
     font->pos[1] -= font->glyph_cache->ascender * 1.1f;
 
     /* We fallback to default english strings in case not enough chars are available in current
-     * font for given translated string (useful in non-latin i18n context, like chinese,
+     * font for given translated string (useful in non-latin i18n context, like Chinese,
      * since many fonts will then show nothing but ugly 'missing char' in their preview).
      * Does not handle all cases, but much better than nothing.
      */
diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c
index 5f073120383..a31cb96c6c9 100644
--- a/source/blender/blenkernel/intern/pointcache.c
+++ b/source/blender/blenkernel/intern/pointcache.c
@@ -1831,7 +1831,10 @@ void BKE_ptcache_id_from_rigidbody(PTCacheID *pid, Object *ob, RigidBodyWorld *r
   pid->file_type = PTCACHE_FILE_PTCACHE;
 }
 
-/** Both \param ob and \param scene may be NULL. */
+/**
+ * \param ob: Optional, may be NULL.
+ * \param scene: Optional may be NULL.
+ */
 PTCacheID BKE_ptcache_id_find(Object *ob, Scene *scene, PointCache *cache)
 {
   PTCacheID result = {0};
diff --git a/source/blender/blenkernel/intern/tracking_solver.c b/source/blender/blenkernel/intern/tracking_solver.c
index 7e7a839b645..ab741eed410 100644
--- a/source/blender/blenkernel/intern/tracking_solver.c
+++ b/source/blender/blenkernel/intern/tracking_solver.c
@@ -221,7 +221,7 @@ static bool reconstruct_retrieve_libmv_tracks(MovieReconstructContext *context,
        *
        * There's one weak part tho, which is requirement object
        * motion starts at the same frame as camera motion does,
-       * otherwise that;' be a russian roulette whether object is
+       * otherwise that;' be a Russian roulette whether object is
        * aligned correct or not.
        */
       if (!origin_set) {
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c
index fc65563b99d..f1575ed2b2d 100644
--- a/source/blender/blenlib/intern/math_geom.c
+++ b/source/blender/blenlib/intern/math_geom.c
@@ -1358,7 +1358,7 @@ bool isect_seg_seg_v2_simple(const float v1[2],
 /**
  * If intersection == ISECT_LINE_LINE_CROSS or ISECT_LINE_LINE_NONE:
  * <pre>
- * pt = v1 + lamba * (v2 - v1) = v3 + mu * (v4 - v3)
+ * pt = v1 + lambda * (v2 - v1) = v3 + mu * (v4 - v3)
  * </pre>
  * \returns intersection type:
  * - ISECT_LINE_LINE_COLINEAR: collinear.
diff --git a/source/blender/bmesh/operators/bmo_inset.c b/source/blender/bmesh/operators/bmo_inset.c
index f23c420295b..1570c802bee 100644
--- a/source/blender/bmesh/operators/bmo_inset.c
+++ b/source/blender/bmesh/operators/bmo_inset.c
@@ -588,7 +588,7 @@ void bmo_inset_region_exec(BMesh *bm, BMOperator *op)
         /* tag if boundary is enabled */
         (use_boundary && BM_edge_is_boundary(e) && BM_elem_flag_test(e->l->f, BM_ELEM_TAG)) ||
 
-        /* tag if edge is an interior edge inbetween a tagged and untagged face */
+        /* tag if edge is an interior edge in between a tagged and untagged face */
         (bm_edge_is_mixed_face_tag(e->l))) {
       /* tag */
       BM_elem_flag_enable(e->v1, BM_ELEM_TAG);
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_cycle.cc b/source/blender/depsgraph/intern/builder/deg_builder_cycle.cc
index d11a60b77dd..bfb1a981c4d 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_cycle.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_cycle.cc
@@ -149,7 +149,7 @@ bool check_relation_can_murder(Relation *relation)
 
 Relation *select_relation_to_murder(Relation *relation, StackEntry *cycle_start_entry)
 {
-  /* More or less russian roulette solver, which will make sure only
+  /* More or less Russian roulette solver, which will make sure only
    * specially marked relations are kept alive.
    *
    * TODO(sergey): There might be better strategies here. */
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index a78a63f1347..48493c9e961 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -630,9 +630,8 @@ static bAnimListElem *make_new_animlistelem(void *data,
     /* do specifics */
     switch (datatype) {
       case ANIMTYPE_SUMMARY: {
-        /* nothing to include for now... this is just a dummy wrappy around all the other channels
-         * in the DopeSheet, and gets included at the start of the list
-         */
+        /* Nothing to include for now... this is just a dummy wrapper around
+         * all the other channels in the DopeSheet, and gets included at the start of the list. */
         ale->key_data = NULL;
         ale->datatype = ALE_ALL;
         break;
diff --git a/source/blender/editors/include/UI_interface.h b/source/blender/editors/include/UI_interface.h
index a61daa11c36..aa1044647c8 100644
--- a/source/blender/editors/include/UI_interface.h
+++ b/source/blender/editors/include/UI_interface.h
@@ -89,7 +89,7 @@ typedef struct uiPopupBlockHandle uiPopupBlockHandle;
  * For #ARegion.overlap regions, pass events though if they don't overlap
  * the regions contents (the usable part of the #View2D and buttons).
  *
- * The margin is needed so it's not possible to accidentally click inbetween buttons.
+ * The margin is needed so it's not possible to accidentally click in between buttons.
  */
 #define UI_REGION_OVERLAP_MARGIN (U.widget_unit / 3)
 
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 0855412bcc4..ee354df3a25 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -3587,7 +3587,7 @@ static uiBut *ui_def_but(uiBlock *block,
   }
 
   /* Number buttons must have a click-step,
-   * assert instead of correcting the value to ensure the caller knowns what they're doing.  */
+   * assert instead of correcting the value to ensure the caller knows what they're doing.  */
   if ((type & BUTTYPE) == UI_BTYPE_NUM) {
     if (ELEM((type & UI_BUT_POIN_TYPES), UI_BUT_POIN_CHAR, UI_BUT_POIN_SHORT, UI_BUT_POIN_INT)) {
       BLI_assert((int)a1 > 0);
diff --git a/source/blender/editors/interface/interface_draw.c b/source/blender/editors/interface/interface_draw.c
index 76630de96db..b7a0812c5f2 100644
--- a/source/blender/editors/interface/interface_draw.c
+++ b/source/blender/editors/interface/interface_draw.c
@@ -750,7 +750,7 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(ar),
 /**
  * Draw title and text safe areas.
  *
- * \Note This functionn is to be used with the 2D dashed shader enabled.
+ * \note This function is to be used with the 2D dashed shader enabled.
  *
  * \param pos: is a PRIM_FLOAT, 2, GPU_FETCH_FLOAT vertex attribute.
  * \param line_origin: is a PRIM_FLOAT, 2, GPU_FETCH_FLOAT vertex attribute.
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index 13bfaa95077..55980099116 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -2760,7 +2760,7 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, con
       startx += UI_DPI_ICON_SIZE / aspect;
     }
   }
-  /* but this extra .05 makes clicks inbetween characters feel nicer */
+  /* But this extra .05 makes clicks in between characters feel nicer. */
   startx += ((UI_TEXT_MARGIN_X + 0.05f) * U.widget_unit) / aspect;
 
   /* mouse dragged outside the widget to the left */
diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index 1674374396f..524474cce88 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -154,8 +154,8 @@ typedef struct IconType {
 } IconType;
 
 /* ******************* STATIC LOCAL VARS ******************* */
-/* static here to cache results of icon directory scan, so it's not
- * scanning the filesystem each time the menu is drawn */
+/* Static here to cache results of icon directory scan, so it's not
+ * scanning the file-system each time the menu is drawn. */
 static struct ListBase iconfilelist = {NULL, NULL};
 static IconTexture icongltex = {{0, 0}, 0, 0, 0, 0.0f, 0.0f};
 
diff --git a/source/blender/editors/mesh/editmesh_tools.c b/source/blender/editors/mesh/editmesh_tools.c
index 2b0213dc1ef..b88b6cbb3a6 100644
--- a/source/blender/editors/mesh/editmesh_tools.c
+++ b/source/blender/editors/mesh/editmesh_tools.c
@@ -5711,7 +5711,7 @@ void MESH_OT_dissolve_limited(wmOperatorType *ot)
                   "use_dissolve_boundaries",
                   false,
                   "All Boundaries",
-                  "Dissolve all vertices inbetween face boundaries");
+                  "Dissolve all vertices in between face boundaries");
   RNA_def_enum_flag(ot->srna,
                     "delimit",
                     rna_enum_mesh_delimit_mode_items,
diff --git a/source/blender/editors/object/object_constraint.c b/source/blender/editors/object/object_constraint.c
index 14813f9a936..8981221cb9c 100644
--- a/source/blender/editors/object/object_constraint.c
+++ b/source/blender/editors/object/object_constraint.c
@@ -496,7 +496,7 @@ static void test_constraint(
           /* The object type check is only needed here in case we have a placeholder
            * object assigned (because the library containing the curve is missing).
            *
-           * In other cases it should be impossible to have a type missmatch.
+           * In other cases it should be impossible to have a type mismatch.
            */
           if (ct->tar->type != OB_CURVE) {
             con->flag |= CONSTRAINT_DISABLE;
@@ -514,7 +514,7 @@ static void test_constraint(
           /* The object type check is only needed here in case we have a placeholder
            * object assigned (because the library containing the armature is missing).
            *
-           * In other cases it should be impossible to have a type missmatch.
+           * In other cases it should be impossible to have a type mismatch.
            */
           if (ct->tar->type != OB_ARMATURE) {
             con->flag |= CONSTRAINT_DISABLE;
diff --git a/source/blender/editors/space_text/text_ops.c b/source/blender/editors/space_text/text_ops.c
index e1550deb659..caefb5070fb 100644
--- a/source/blender/editors/space_text/text_ops.c
+++ b/source/blender/editors/space_text/text_ops.c
@@ -142,7 +142,7 @@ static char *buf_tabs_to_spaces(const char *in_buf, const int tab_size)
 
 BLI_INLINE int text_pixel_x_to_column(SpaceText *st, const int x)
 {
-  /* add half the char width so mouse cursor selection is inbetween letters */
+  /* Add half the char width so mouse cursor selection is in between letters. */
   return (x + (st->cwidth / 2)) / st->cwidth;
 }
 
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index e006014b71f..613871b1fee 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -162,12 +162,14 @@ typedef struct Object_Runtime {
   struct Mesh *mesh_eval;
   /**
    * Mesh structure created during object evaluation.
-   * It has deforemation only modifiers applied on it.
+   * It has deformation only modifiers applied on it.
    */
   struct Mesh *mesh_deform_eval;
 
-  /* This is a mesh representation of corresponding object.
-   * It created when Python calls `object.to_mesh()`. */
+  /**
+   * This is a mesh representation of corresponding object.
+   * It created when Python calls `object.to_mesh()`.
+   */
   struct Mesh *object_as_temp_mesh;
 
   /** Runtime evaluated curve-specific data, not stored in the file. */
diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 3cb96ce8bf8..8eabbc0df0d 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -717,7 +717,7 @@ typedef struct UserDef {
   /** Overall sensitivity of 3D mouse. */
   float ndof_sensitivity;
   float ndof_orbit_sensitivity;
-  /** Deadzone of 3D mouse. */
+  /** Dead-zone of 3D mouse. */
   float ndof_deadzone;
   /** #eNdof_Flag, flags for 3D mouse. */
   int ndof_flag;
diff --git a/source/blender/makesdna/intern/dna_genfile.c b/source/blender/makesdna/intern/dna_genfile.c
index 86ba306fc6a..09a7a157996 100644
--- a/source/blender/makesdna/intern/dna_genfile.c
+++ b/source/blender/makesdna/intern/dna_genfile.c
@@ -1102,7 +1102,7 @@ static void reconstruct_elem(const SDNA *newsdna,
    *          - cast type
    *      - name partially equal (array differs)
    *          - type equal: memcpy
-   *          - types casten
+   *          - type cast (per element).
    * (nzc 2-4-2001 I want the 'unsigned' bit to be parsed as well. Where
    * can I force this?)
    */
diff --git a/source/blender/makesrna/intern/rna_mesh.c b/source/blender/makesrna/intern/rna_mesh.c
index 81480eda4d6..f7e0990aa88 100644
--- a/source/blender/makesrna/intern/rna_mesh.c
+++ b/source/blender/makesrna/intern/rna_mesh.c
@@ -1370,7 +1370,7 @@ static int rna_MeshPolygonStringPropertyLayer_data_length(PointerRNA *ptr)
 }
 
 /* XXX, we dont have proper byte string support yet, so for now use the (bytes + 1)
- * bmesh API exposes correct python/bytestring access */
+ * bmesh API exposes correct python/byte-string access. */
 void rna_MeshStringProperty_s_get(PointerRNA *ptr, char *value)
 {
   MStringProperty *ms = (MStringProperty *)ptr->data;
diff --git a/source/blender/makesrna/intern/rna_modifier.c b/source/blender/makesrna/intern/rna_modifier.c
index d333d8eddaf..712fe2a9984 100644
--- a/source/blender/makesrna/intern/rna_modifier.c
+++ b/source/blender/makesrna/intern/rna_modifier.c
@@ -2062,7 +2062,7 @@ static void rna_def_modifier_decimate(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_dissolve_boundaries", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_DECIM_FLAG_ALL_BOUNDARY_VERTS);
   RNA_def_property_ui_text(
-      prop, "All Boundaries", "Dissolve all vertices inbetween face boundaries (planar only)");
+      prop, "All Boundaries", "Dissolve all vertices in between face boundaries (planar only)");
   RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
   prop = RNA_def_property(srna, "delimit", PROP_ENUM, PROP_NONE);
diff --git a/source/blender/modifiers/intern/MOD_armature.c b/source/blender/modifiers/intern/MOD_armature.c
index 522b387411b..9f3802a4fa1 100644
--- a/source/blender/modifiers/intern/MOD_armature.c
+++ b/source/blender/modifiers/intern/MOD_armature.c
@@ -82,7 +82,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the armature is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !amd->object || amd->object->type != OB_ARMATURE;
 }
diff --git a/source/blender/modifiers/intern/MOD_array.c b/source/blender/modifiers/intern/MOD_array.c
index 48718a47419..9e368d2c050 100644
--- a/source/blender/modifiers/intern/MOD_array.c
+++ b/source/blender/modifiers/intern/MOD_array.c
@@ -775,7 +775,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the curve/mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
 
   if (amd->curve_ob && amd->curve_ob->type != OB_CURVE) {
diff --git a/source/blender/modifiers/intern/MOD_boolean.c b/source/blender/modifiers/intern/MOD_boolean.c
index ea42ddb03f4..e55eeddbfa5 100644
--- a/source/blender/modifiers/intern/MOD_boolean.c
+++ b/source/blender/modifiers/intern/MOD_boolean.c
@@ -74,7 +74,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !bmd->object || bmd->object->type != OB_MESH;
 }
diff --git a/source/blender/modifiers/intern/MOD_curve.c b/source/blender/modifiers/intern/MOD_curve.c
index bedd6e519eb..f9137572d6f 100644
--- a/source/blender/modifiers/intern/MOD_curve.c
+++ b/source/blender/modifiers/intern/MOD_curve.c
@@ -69,7 +69,7 @@ static bool isDisabled(const Scene *UNUSED(scene), ModifierData *md, bool UNUSED
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the curve is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !cmd->object || cmd->object->type != OB_CURVE;
 }
diff --git a/source/blender/modifiers/intern/MOD_datatransfer.c b/source/blender/modifiers/intern/MOD_datatransfer.c
index fa60bd2a502..bb032f9725c 100644
--- a/source/blender/modifiers/intern/MOD_datatransfer.c
+++ b/source/blender/modifiers/intern/MOD_datatransfer.c
@@ -146,7 +146,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !dtmd->ob_source || dtmd->ob_source->type != OB_MESH;
 }
diff --git a/source/blender/modifiers/intern/MOD_lattice.c b/source/blender/modifiers/intern/MOD_lattice.c
index aca5b43a7d5..a73e96da975 100644
--- a/source/blender/modifiers/intern/MOD_lattice.c
+++ b/source/blender/modifiers/intern/MOD_lattice.c
@@ -67,7 +67,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the lattice is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !lmd->object || lmd->object->type != OB_LATTICE;
 }
diff --git a/source/blender/modifiers/intern/MOD_mask.c b/source/blender/modifiers/intern/MOD_mask.c
index bc218114432..df8f68862e6 100644
--- a/source/blender/modifiers/intern/MOD_mask.c
+++ b/source/blender/modifiers/intern/MOD_mask.c
@@ -353,7 +353,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the armature is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return mmd->ob_arm && mmd->ob_arm->type != OB_ARMATURE;
 }
diff --git a/source/blender/modifiers/intern/MOD_meshdeform.c b/source/blender/modifiers/intern/MOD_meshdeform.c
index 7ddce983c2a..408e38f43ab 100644
--- a/source/blender/modifiers/intern/MOD_meshdeform.c
+++ b/source/blender/modifiers/intern/MOD_meshdeform.c
@@ -142,7 +142,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return !mmd->object || mmd->object->type != OB_MESH;
 }
diff --git a/source/blender/modifiers/intern/MOD_particleinstance.c b/source/blender/modifiers/intern/MOD_particleinstance.c
index 01f1aeffdb2..49bb8691764 100644
--- a/source/blender/modifiers/intern/MOD_particleinstance.c
+++ b/source/blender/modifiers/intern/MOD_particleinstance.c
@@ -83,7 +83,7 @@ static bool isDisabled(const struct Scene *scene, ModifierData *md, bool useRend
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   if (!pimd->ob || pimd->ob->type != OB_MESH) {
     return true;
diff --git a/source/blender/modifiers/intern/MOD_shrinkwrap.c b/source/blender/modifiers/intern/MOD_shrinkwrap.c
index 408ec06a49c..4bca48852a2 100644
--- a/source/blender/modifiers/intern/MOD_shrinkwrap.c
+++ b/source/blender/modifiers/intern/MOD_shrinkwrap.c
@@ -79,7 +79,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   if (!smd->target || smd->target->type != OB_MESH) {
     return true;
diff --git a/source/blender/modifiers/intern/MOD_surfacedeform.c b/source/blender/modifiers/intern/MOD_surfacedeform.c
index 93196ea21fb..b34688d27d6 100644
--- a/source/blender/modifiers/intern/MOD_surfacedeform.c
+++ b/source/blender/modifiers/intern/MOD_surfacedeform.c
@@ -1282,7 +1282,7 @@ static bool isDisabled(const Scene *UNUSED(scene), ModifierData *md, bool UNUSED
   /* The object type check is only needed here in case we have a placeholder
    * object assigned (because the library containing the mesh is missing).
    *
-   * In other cases it should be impossible to have a type missmatch.
+   * In other cases it should be impossible to have a type mismatch.
    */
   return (smd->target == NULL || smd->target->type != OB_MESH) &&
          !(smd->verts != NULL && !(smd->flags & MOD_SDEF_BIND));