Re: [patch] suspend: fix suspend on single-CPU systems

From: Pavel Machek
Date: Sat Dec 23 2006 - 18:48:18 EST


> Subject: [patch] suspend: fix suspend on single-CPU systems
> From: Ingo Molnar <mingo@xxxxxxx>
>
> Clark Williams reported that suspend doesnt work on his laptop on
> 2.6.20-rc1-rt kernels. The bug was introduced by the following cleanup
> commit:
>
> commit 112cecb2cc0e7341db92281ba04b26c41bb8146d
> Author: Siddha, Suresh B <suresh.b.siddha@xxxxxxxxx>
> Date: Wed Dec 6 20:34:31 2006 -0800
>
> [PATCH] suspend: don't change cpus_allowed for task initiating the suspend
>
> because with this change 'error' is not initialized to 0 anymore, if
> there are no other online CPUs. (i.e. if the system is single-CPU).
>
> the fix is the initialize it to 0. The really weird thing is that my
> version of gcc does not warn about this non-initialized variable
> situation ...
>
> (also fix the kernel printk in the error branch, it was missing a
> newline)
>
> Reported-by: Clark Williams <williams@xxxxxxxxxx>
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>

Looks okay to me.

--
Thanks, Sharp!
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