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lib/string.c: simplify strnstr()

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Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Joe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
André Goddard Rosa 2010-03-05 13:43:12 -08:00 committed by Linus Torvalds
parent a11d2b64e1
commit d6a2eedfdd
1 changed files with 3 additions and 3 deletions
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6
lib/string.c
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@ -689,13 +689,13 @@ EXPORT_SYMBOL(strstr);
*/
char *strnstr(const char *s1, const char *s2, size_t len)
{
size_t l1 = len, l2;
size_t l2;
l2 = strlen(s2);
if (!l2)
return (char *)s1;
while (l1 >= l2) {
l1--;
while (len >= l2) {
len--;
if (!memcmp(s1, s2, l2))
return (char *)s1;
s1++;