fix error-path NULL deref in alloc_posix_timer()

Found by static checker (http://repo.or.cz/w/smatch.git).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index e36d579..5131e54 100644 (file)
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -441,7 +441,7 @@ static struct k_itimer * alloc_posix_timer(void)
                return tmr;
        if (unlikely(!(tmr->sigq = sigqueue_alloc()))) {
                kmem_cache_free(posix_timers_cache, tmr);
-               tmr = NULL;
+               return NULL;
        }
        memset(&tmr->sigq->info, 0, sizeof(siginfo_t));
        return tmr;