2013-04-23 02:57:55

by Jonghwan Choi

[permalink] [raw]
Subject: [PATCH 3.8-stable] perf: Fix error return code

3.8-stable review patch. If anyone has any objections, please let me know.

------------------

From: "Wei Yongjun <[email protected]>"

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 <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link:
http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08
[email protected]
[ Tweaked the error code setting placement and the changelog. ]
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Jonghwan Choi <[email protected]>
---
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


2013-04-23 10:57:07

by Luis Henriques

[permalink] [raw]
Subject: Re: [PATCH 3.8-stable] perf: Fix error return code

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.

Cheers,
--
Luis

>
> ------------------
>
> From: "Wei Yongjun <[email protected]>"
>
> 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 <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Link:
> http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08
> [email protected]
> [ Tweaked the error code setting placement and the changelog. ]
> Signed-off-by: Ingo Molnar <[email protected]>
> Signed-off-by: Jonghwan Choi <[email protected]>
> ---
> 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
>
> --
> To unsubscribe from this list: send the line "unsubscribe stable" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

2013-05-10 02:09:00

by Ben Hutchings

[permalink] [raw]
Subject: Re: [PATCH 3.8-stable] perf: Fix error return code

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 <[email protected]>"
> >
> > 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 <[email protected]>
> > Cc: [email protected]
> > Cc: [email protected]
> > Cc: [email protected]
> > Link:
> > http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08
> > [email protected]
> > [ Tweaked the error code setting placement and the changelog. ]
> > Signed-off-by: Ingo Molnar <[email protected]>
> > Signed-off-by: Jonghwan Choi <[email protected]>
> > ---
> > 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
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe stable" in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> --
> To unsubscribe from this list: send the line "unsubscribe stable" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>

--
Ben Hutchings
For every action, there is an equal and opposite criticism. - Harrison


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