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| author | Eric Blake <eblake@redhat.com> | 2009-07-22 02:17:12 +0000 |
|---|---|---|
| committer | Eric Blake <eblake@redhat.com> | 2009-07-22 02:17:12 +0000 |
| commit | d6438f13d10acf192955b98b3f3a3fd5948f211e (patch) | |
| tree | f912d00d60ceb871d488e6c8045d4bb88bc733d7 /newlib/libc/stdio/fflush.c | |
| parent | dc176ff60c5d8bb316d1f012c1ae542939648ceb (diff) | |
| download | newlib-d6438f13d10acf192955b98b3f3a3fd5948f211e.zip newlib-d6438f13d10acf192955b98b3f3a3fd5948f211e.tar.gz newlib-d6438f13d10acf192955b98b3f3a3fd5948f211e.tar.bz2 | |
Avoid a fault from locking a closed standard file.
* libc/stdio/fflush.c (_fflush_r): Give up early if stream has
been previously closed.
Diffstat (limited to 'newlib/libc/stdio/fflush.c')
| -rw-r--r-- | newlib/libc/stdio/fflush.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/newlib/libc/stdio/fflush.c b/newlib/libc/stdio/fflush.c index 218940d..bc208ec 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; |