[PATCH] add_timer() of a pending timer is illegal

In the recent timer rework we lost the check for an add_timer() of an
already-pending timer.  That check was useful for networking, so put it back.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2005-10-30 15:02:24 -08:00 committed by Linus Torvalds
parent 2ca7d93bb2
commit 15d2bace5e
1 changed files with 2 additions and 1 deletions

View File

@ -78,8 +78,9 @@ extern unsigned long next_timer_interrupt(void);
* Timers with an ->expired field in the past will be executed in the next
* timer tick.
*/
static inline void add_timer(struct timer_list * timer)
static inline void add_timer(struct timer_list *timer)
{
BUG_ON(timer_pending(timer));
__mod_timer(timer, timer->expires);
}