[PATCH] timer: avoid reading uninitialized data

From: Pavel Roskin
Date: Sat Jul 18 2009 - 16:46:26 EST


timer->expires may be uninitialized, so check timer_pending() before
touching timer->expires to pacify kmemcheck.

Signed-off-by: Pavel Roskin <proski@xxxxxxx>
---
kernel/timer.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/timer.c b/kernel/timer.c
index 0b36b9e..a7f07d5 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -714,7 +714,7 @@ int mod_timer(struct timer_list *timer, unsigned long expires)
* networking code - if the timer is re-modified
* to be the same thing then just return:
*/
- if (timer->expires == expires && timer_pending(timer))
+ if (timer_pending(timer) && timer->expires == expires)
return 1;

return __mod_timer(timer, expires, false, TIMER_NOT_PINNED);
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