Re: [PATCH] ktimers subsystem 2.6.14-rc2-kt5

From: Thomas Gleixner
Date: Thu Sep 29 2005 - 01:52:49 EST


On Wed, 2005-09-28 at 18:10 -0700, john stultz wrote:

> > + /* Auto rearm the timer ? */
> > + if (rearm && ktime_cmp_val(timer->interval, !=, KTIME_ZERO))
> > + enqueue_ktimer(timer, base, NULL, KTIMER_REARM);
> > +}
>
>
> There's a couple of places like this where you pass NULL as the ktime_t
> pointer tim to enqueue_ktimer(). However in enqueue_ktimer, you
> dereference tim in a few spots w/o checking for NULL.
>

The KTIMER_REARM case is the broken spot. I fixed this already as it was
oopsing here to, but somehow I messed up with quilt.

tglx

Index: linux-2.6.14-rc2-rt4/kernel/ktimers.c
===================================================================
--- linux-2.6.14-rc2-rt4.orig/kernel/ktimers.c
+++ linux-2.6.14-rc2-rt4/kernel/ktimers.c
@@ -242,7 +242,7 @@ static int enqueue_ktimer(struct ktimer
goto nocheck;
case KTIMER_REARM:
while ktime_cmp(timer->expires, <= , now) {
- timer->expires = ktime_add(timer->expires, *tim);
+ timer->expires = ktime_add(timer->expires, timer->interval);
timer->overrun++;
}
goto nocheck;


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/