diff options
Diffstat (limited to 'libio/ferror.c')
| -rw-r--r-- | libio/ferror.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libio/ferror.c b/libio/ferror.c index 01e3bd8e2b..d10fcd9fff 100644 --- a/libio/ferror.c +++ b/libio/ferror.c @@ -32,6 +32,8 @@ _IO_ferror (_IO_FILE *fp) { int result; CHECK_FILE (fp, EOF); + if (!_IO_need_lock (fp)) + return _IO_ferror_unlocked (fp); _IO_flockfile (fp); result = _IO_ferror_unlocked (fp); _IO_funlockfile (fp); |