diff options
| author | Eric Blake <eblake@redhat.com> | 2009-07-22 06:17:12 +0400 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2009-07-22 06:17:12 +0400 |
| commit | d6438f13d10acf192955b98b3f3a3fd5948f211e (patch) | |
| tree | f912d00d60ceb871d488e6c8045d4bb88bc733d7 | |
| parent | dc176ff60c5d8bb316d1f012c1ae542939648ceb (diff) | |
Avoid a fault from locking a closed standard file.
* libc/stdio/fflush.c (_fflush_r): Give up early if stream has
been previously closed.
| -rw-r--r-- | newlib/ChangeLog | 16 | ||||
| -rw-r--r-- | newlib/libc/stdio/fflush.c | 3 |
2 files changed, 14 insertions, 5 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 47b6c0f57..0ed96068b 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,9 @@ +2009-07-22 Eric Blake <ebb9@byu.net> + + Avoid a fault from locking a closed standard file. + * libc/stdio/fflush.c (_fflush_r): Give up early if stream has + been previously closed. + 2009-07-09 Craig Howland <howland@LGSInnovations.com> * libm/math/ef_scalb.c: Replace isnanf() (pre-C99 function call) with @@ -30,7 +36,7 @@ 2009-07-06 Joel Sherrill <joel.sherrill@oarcorp.com> * libc/include/sys/features.h: Enable UNIX98 mutex attributes - for RTEMS. + for RTEMS. 2009-07-03 Eric Blake <ebb9@byu.net> @@ -156,7 +162,7 @@ * newlib.hin: Add _HAVE_LONG_DOUBLE flag. * libc/include/math.h: Change non-builtin defines for HUGE_VAL, HUGE_VALF, and HUGE_VALL to be constant expressions. Add definitions - for the non-builtin case for INFINITY and NAN. Gate HUGE_VALL and + for the non-builtin case for INFINITY and NAN. Gate HUGE_VALL and union __ldmath definitions with (new) _HAVE_LONG_DOUBLE. *libm/common/s_infconst.c: Change definitions to use values from float.h instead of non-so-portable integer forms. Mark as being @@ -1553,8 +1559,8 @@ be in sync with current kernels. 2008-11-20 Ken Werner <ken.werner@de.ibm.com> - Patrick Mansfield <patmans@us.ibm.com> - Joel Schopp <jschopp@austin.ibm.com> + Patrick Mansfield <patmans@us.ibm.com> + Joel Schopp <jschopp@austin.ibm.com> * libc/machine/spu/configure.in: Add __ea detection. * libc/machine/spu/Makefile.am: Add new files. @@ -2347,7 +2353,7 @@ * libc/machine/spu/Makefile.am: Add new files. * libc/machine/spu/Makefile.in: Likewise. * libc/machine/spu/include/spu_timer.h: New file to add timer support - using interrupts. + using interrupts. * libc/machine/spu/spu_clock_stop.c: Likewise. * libc/machine/spu/spu_clock_svcs.c: Likewise. * libc/machine/spu/spu_timer_flih.S: Likewise. diff --git a/newlib/libc/stdio/fflush.c b/newlib/libc/stdio/fflush.c index 218940dcf..bc208ec49 100644 --- a/newlib/libc/stdio/fflush.c +++ b/newlib/libc/stdio/fflush.c @@ -93,6 +93,9 @@ _DEFUN(_fflush_r, (ptr, fp), CHECK_INIT (ptr, fp); + if (!fp->_flags) + return 0; + _flockfile (fp); t = fp->_flags; |