* [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc
@ 2015-04-16 13:46 weiyj_lk
2015-04-16 14:08 ` Jarkko Nikula
2015-04-17 13:31 ` Mark Brown
0 siblings, 2 replies; 4+ messages in thread
From: weiyj_lk @ 2015-04-16 13:46 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, dan.carpenter, pawel.piskorski,
yang.jie, han.lu, jarkko.nikula
Cc: Wei Yongjun, alsa-devel, linux-kernel
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
sound/soc/intel/haswell/sst-haswell-ipc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.c b/sound/soc/intel/haswell/sst-haswell-ipc.c
index 344a1e9..324eceb 100644
--- a/sound/soc/intel/haswell/sst-haswell-ipc.c
+++ b/sound/soc/intel/haswell/sst-haswell-ipc.c
@@ -2201,7 +2201,6 @@ dma_err:
dsp_new_err:
sst_ipc_fini(ipc);
ipc_init_err:
- kfree(hsw);
return ret;
}
EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc
2015-04-16 13:46 [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc weiyj_lk
@ 2015-04-16 14:08 ` Jarkko Nikula
2015-04-16 21:34 ` [alsa-devel] " Jin, Yao
2015-04-17 13:31 ` Mark Brown
1 sibling, 1 reply; 4+ messages in thread
From: Jarkko Nikula @ 2015-04-16 14:08 UTC (permalink / raw)
To: weiyj_lk, lgirdwood, broonie, perex, tiwai, dan.carpenter,
pawel.piskorski, yang.jie, han.lu
Cc: Wei Yongjun, alsa-devel, linux-kernel
On 04/16/2015 04:46 PM, weiyj_lk@163.com wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> It's not necessary to free memory allocated with devm_kzalloc
> and using kfree leads to a double free.
>
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
> ---
> sound/soc/intel/haswell/sst-haswell-ipc.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.c b/sound/soc/intel/haswell/sst-haswell-ipc.c
> index 344a1e9..324eceb 100644
> --- a/sound/soc/intel/haswell/sst-haswell-ipc.c
> +++ b/sound/soc/intel/haswell/sst-haswell-ipc.c
> @@ -2201,7 +2201,6 @@ dma_err:
> dsp_new_err:
> sst_ipc_fini(ipc);
> ipc_init_err:
> - kfree(hsw);
> return ret;
> }
> EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
>
Similar case than with baytrail. Here introduced by commit 0e7921e9583b
("ASoC: Intel: Use the generic IPC/mailbox APIs in Broadwell")
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [alsa-devel] [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc
2015-04-16 14:08 ` Jarkko Nikula
@ 2015-04-16 21:34 ` Jin, Yao
0 siblings, 0 replies; 4+ messages in thread
From: Jin, Yao @ 2015-04-16 21:34 UTC (permalink / raw)
To: Jarkko Nikula, weiyj_lk, lgirdwood, broonie, perex, tiwai,
dan.carpenter, pawel.piskorski, yang.jie, han.lu
Cc: Wei Yongjun, alsa-devel, linux-kernel
For HSW, a patch "[PATCH] ASoC: Intel: Remove invalid kfree of devm
allocated data" to fix this issue has been applied.
But yes, we also need a similar patch for Baytrail.
Thanks
Jin Yao
On 2015/4/16 22:08, Jarkko Nikula wrote:
> On 04/16/2015 04:46 PM, weiyj_lk@163.com wrote:
>> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>>
>> It's not necessary to free memory allocated with devm_kzalloc
>> and using kfree leads to a double free.
>>
>> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>> ---
>> sound/soc/intel/haswell/sst-haswell-ipc.c | 1 -
>> 1 file changed, 1 deletion(-)
>>
>> diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.c
>> b/sound/soc/intel/haswell/sst-haswell-ipc.c
>> index 344a1e9..324eceb 100644
>> --- a/sound/soc/intel/haswell/sst-haswell-ipc.c
>> +++ b/sound/soc/intel/haswell/sst-haswell-ipc.c
>> @@ -2201,7 +2201,6 @@ dma_err:
>> dsp_new_err:
>> sst_ipc_fini(ipc);
>> ipc_init_err:
>> - kfree(hsw);
>> return ret;
>> }
>> EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
>>
> Similar case than with baytrail. Here introduced by commit 0e7921e9583b
> ("ASoC: Intel: Use the generic IPC/mailbox APIs in Broadwell")
>
> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc
2015-04-16 13:46 [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc weiyj_lk
2015-04-16 14:08 ` Jarkko Nikula
@ 2015-04-17 13:31 ` Mark Brown
1 sibling, 0 replies; 4+ messages in thread
From: Mark Brown @ 2015-04-17 13:31 UTC (permalink / raw)
To: weiyj_lk
Cc: lgirdwood, perex, tiwai, dan.carpenter, pawel.piskorski, yang.jie,
han.lu, jarkko.nikula, Wei Yongjun, alsa-devel, linux-kernel
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On Thu, Apr 16, 2015 at 09:46:18PM +0800, weiyj_lk@163.com wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> It's not necessary to free memory allocated with devm_kzalloc
> and using kfree leads to a double free.
Like Yao said a fix for this has already been applied.
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-04-16 13:46 [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc weiyj_lk
2015-04-16 14:08 ` Jarkko Nikula
2015-04-16 21:34 ` [alsa-devel] " Jin, Yao
2015-04-17 13:31 ` Mark Brown
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