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perf: Remove the extra validity check on nr_pages
[linux-2.6-block.git]
/
kernel
/
events
/
core.c
diff --git
a/kernel/events/core.c
b/kernel/events/core.c
index 7f2fbb8b5069b3258bdd9721c60b850f965953d1..0969c9b67eece9c9096e8521ca2b16f52e4d552e 100644
(file)
--- 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))