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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-10-26 16:49:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-29 07:39:25 -0700
commit0a1b71b4008d332e57b5605a8228ea7aa96687e8 (patch)
tree92016012d1fa61980b5fd1519172704364f51e2d /include/linux/string.h
parent478988d3b28e98a31e0cfe24e011e28ba0f3cf0d (diff)
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strstrip(): mark as as must_check
strstrip() can return a modified value of its input argument, when removing elading whitesapce. So it is surely bug for this function's return value to be ignored. The caller is probably going to use the incorrect original pointer. So mark it __must_check to prevent this frm happening (as it has before). Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/string.h')
-rw-r--r--include/linux/string.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/string.h b/include/linux/string.h
index 489019ef1694..b8508868d5ad 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -62,7 +62,7 @@ extern char * strnchr(const char *, size_t, int);
#ifndef __HAVE_ARCH_STRRCHR
extern char * strrchr(const char *,int);
#endif
-extern char * strstrip(char *);
+extern char * __must_check strstrip(char *);
#ifndef __HAVE_ARCH_STRSTR
extern char * strstr(const char *,const char *);
#endif