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SubjectRe: [PATCH 3.8-stable] perf: Fix error return code
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On Tue, 2013-04-23 at 11:56 +0100, Luis Henriques wrote:
> On Tue, Apr 23, 2013 at 11:57:51AM +0900, Jonghwan Choi wrote:
> > 3.8-stable review patch. If anyone has any objections, please let me know.
>
> Thanks, I believe this is also applicable to 3.2.y, 3.4.y and 3.5.y.

I agree; I've queued this up for 3.2.y, thanks.

Ben.

> Cheers,
> --
> Luis
>
> >
> > ------------------
> >
> > From: "Wei Yongjun <yongjun_wei@trendmicro.com.cn>"
> >
> > commit c481420248c6730246d2a1b1773d5d7007ae0835 upstream.
> >
> > Fix to return -ENOMEM in the allocation error case instead of 0
> > (if pmu_bus_running == 1), as done elsewhere in this function.
> >
> > Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
> > Cc: a.p.zijlstra@chello.nl
> > Cc: paulus@samba.org
> > Cc: acme@ghostprotocols.net
> > Link:
> > http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08
> > c2w1tngQ@mail.gmail.com
> > [ Tweaked the error code setting placement and the changelog. ]
> > Signed-off-by: Ingo Molnar <mingo@kernel.org>
> > Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
> > ---
> > kernel/events/core.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/kernel/events/core.c b/kernel/events/core.c
> > index 7b6646a..f6eba58 100644
> > --- a/kernel/events/core.c
> > +++ b/kernel/events/core.c
> > @@ -5988,6 +5988,7 @@ skip_type:
> > if (pmu->pmu_cpu_context)
> > goto got_cpu_context;
> >
> > + ret = -ENOMEM;
> > pmu->pmu_cpu_context = alloc_percpu(struct perf_cpu_context);
> > if (!pmu->pmu_cpu_context)
> > goto free_dev;
> > --
> > 1.7.9.5
> >
> > --
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--
Ben Hutchings
For every action, there is an equal and opposite criticism. - Harrison
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