kernel/kfifo.c: replace conditional test with is_power_of_2()

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/kfifo.c b/kernel/kfifo.c
index bc41ad0f24f8..26539e3228e5 100644
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -72,9 +72,9 @@ struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, spinlock_t *lock)
 
         /*
          * round up to the next power of 2, since our 'let the indices
-         * wrap' tachnique works only in this case.
+         * wrap' technique works only in this case.
          */
-        if (size & (size - 1)) {
+        if (!is_power_of_2(size)) {
                 BUG_ON(size > 0x80000000);
                 size = roundup_pow_of_two(size);
         }