X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=kernel%2Fevents%2Fcore.c;h=0969c9b67eece9c9096e8521ca2b16f52e4d552e;hb=74390aa5567827add5058a3b26eff0ed06a629ba;hp=7f2fbb8b5069b3258bdd9721c60b850f965953d1;hpb=3a03005ff9445834f3d3b577a11bcbdbdf7a89cf;p=linux-2.6-block.git

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 7f2fbb8b5069..0969c9b67eec 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4420,7 +4420,7 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
 	 * If we have rb pages ensure they're a power-of-two number, so we
 	 * can do bitmasks instead of modulo.
 	 */
-	if (nr_pages != 0 && !is_power_of_2(nr_pages))
+	if (!is_power_of_2(nr_pages))
 		return -EINVAL;
 
 	if (vma_size != PAGE_SIZE * (1 + nr_pages))