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ASoC: SOF: compress: fix null check after dereference 

"cstream" is dereferenced but null checked later. Swap their
positions to avoid potential null dereference.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220310171651.249385-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Weiguo Li 2022-03-10 11:16:48 -06:00 committed by Mark Brown
parent a174e72e23
commit 7e4bfcf10a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
sound/soc/sof/compress.c
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@ -46,8 +46,8 @@ void snd_sof_compr_init_elapsed_work(struct work_struct *work)
*/
void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_compr_runtime *crtd = cstream->runtime;
struct snd_soc_pcm_runtime *rtd;
struct snd_compr_runtime *crtd;
struct snd_soc_component *component;
struct snd_compr_tstamp *tstamp;
struct snd_sof_pcm *spcm;
@ -55,6 +55,8 @@ void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
if (!cstream)
return;
rtd = cstream->private_data;
crtd = cstream->runtime;
tstamp = crtd->private_data;
component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);