[PATCH] kernel-sched: Delete an unnecessary check before unregister_sysctl_table()

SF Markus Elfring
2015-07-04T07:13:02Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 4 Jul 2015 09:06:32 +0200

The unregister_sysctl_table() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
kernel/sched/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b803e1b..4756d1c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5298,8 +5298,7 @@ static void register_sched_domain_sysctl(void)
/* may be called multiple times per register */
static void unregister_sched_domain_sysctl(void)
{
- if (sd_sysctl_header)
- unregister_sysctl_table(sd_sysctl_header);
+ unregister_sysctl_table(sd_sysctl_header);
sd_sysctl_header = NULL;
if (sd_ctl_dir[0].child)
sd_free_ctl_entry(&sd_ctl_dir[0].child);
--
2.4.5