Re: [alsa-devel] [PATCH -next] ASoC: Intel: sst_hsw: remove kfree for memory allocated with devm_kzalloc

From: Jin, Yao
Date: Thu Apr 16 2015 - 17:35:22 EST


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@xxxxxxx wrote:
>> From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
>>
>> 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@xxxxxxxxxxxxxxxxx>
>> ---
>> 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@xxxxxxxxxxxxxxx>
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