lib/string.c: simplify strnstr()

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>

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/string.c b/lib/string.c
index 0f862453208..f71bead1be3 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -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++;