1 files changed, 5 insertions, 2 deletions
diff --git a/newlib/libc/stdio/getc.c b/newlib/libc/stdio/getc.c
index 4b2509737..f7a2cac5a 100644
--- a/newlib/libc/stdio/getc.c
+++ b/newlib/libc/stdio/getc.c
@@ -74,7 +74,10 @@ int
 getc (fp)
      register FILE *fp;
 {
+  int result;
+  _flockfile(fp);
   /* CHECK_INIT is called (eventually) by __srefill.  */
-
-  return __sgetc (fp);
+  result = __sgetc (fp);
+  _funlockfile(fp);
+  return result;
 }