[PATCH v2] sys_prctl(): remove unsigned comparision with less than zero

Yang Xu
2019-07-24T02:25:04Z

Currently, when calling prctl(PR_SET_TIMERSLACK, arg2), arg2 is an
unsigned long value, arg2 will never < 0. Negative judgment is
meaningless, so remove it.

Fixes: 6976675d9404 ("hrtimer: create a "timer_slack" field in the task struct")
Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
---
kernel/sys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index 2969304c29fe..701b5f00651d 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2372,7 +2372,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
error = current->timer_slack_ns;
break;
case PR_SET_TIMERSLACK:
- if (arg2 <= 0)
+ if (arg2 == 0)
current->timer_slack_ns =
current->default_timer_slack_ns;
else
--
2.18.1