[PATCH] sched/core: fix sched_getaffinity return value kerneldoc

[Zev Weiss <zev@bewilderbeest.net>]

Previous version was probably written referencing the man page for
glibc's wrapper, but the wrapper's behavior differs from that of the
syscall itself in this case.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
---
 kernel/sched/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 51d7105..c272491 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4752,7 +4752,8 @@ out_unlock:
  * @len: length in bytes of the bitmask pointed to by user_mask_ptr
  * @user_mask_ptr: user-space pointer to hold the current cpu mask
  *
- * Return: 0 on success. An error code otherwise.
+ * Return: size of cpu mask copied to user_mask_ptr on success. An
+ * error code otherwise.
  */
 SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len,
 		unsigned long __user *, user_mask_ptr)
-- 
2.8.1