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timer: Setup uninitialized timer with a stub callback 

Remove the WARN_ON() in timer_fixup_activate() as we now get the
debugobjects printout in the debugobjects activate check.

We also assign a dummy timer callback so that if the timer is
actually set to fire we don't oops.

[ tglx@linutronix.de: Split out the debugobjects vs. the timer change ]

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Christine Chan <cschan@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1320724108-20788-2-git-send-email-sboyd@codeaurora.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Stephen Boyd 2011-11-07 19:48:26 -08:00 committed by Thomas Gleixner
parent b84d435cc2
commit fb16b8cf0b
1 changed files with 8 additions and 1 deletions
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9
kernel/timer.c
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@ -427,6 +427,12 @@ static int timer_fixup_init(void *addr, enum debug_obj_state state)
}
}
/* Stub timer callback for improperly used timers. */
static void stub_timer(unsigned long data)
{
WARN_ON(1);
}
/*
* fixup_activate is called when:
* - an active object is activated
@ -450,7 +456,8 @@ static int timer_fixup_activate(void *addr, enum debug_obj_state state)
debug_object_activate(timer, &timer_debug_descr);
return 0;
} else {
WARN_ON_ONCE(1);
setup_timer(timer, stub_timer, 0);
return 1;
}
return 0;