diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-03-10 11:00:41 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-15 14:18:29 +0200 |
| commit | d650ed0617e0158d8622ffc3b221ba9576bdb125 (patch) | |
| tree | 2c4f0d51b17e496c10d258f5a638c12eb3a2a080 /sound | |
| parent | 7f19245c3647afea8c7c41f795506ef70f64b9f2 (diff) | |
ASoC: soc-compress: Change the check for codec_dai
commit ccb4214f7f2a8b75acf493f31128e464ee1a3536 upstream.
It should be better to reverse the check on codec_dai
and returned early in order to be easier to understand.
Fixes: de2c6f98817f ("ASoC: soc-compress: prevent the potentially use of null pointer")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220310030041.1556323-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-compress.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index fec736c8c45f..da6e40aef7b6 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -871,16 +871,19 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) return -EINVAL; } - /* check client and interface hw capabilities */ - if (codec_dai) { - if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && - snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) - playback = 1; - if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) && - snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) - capture = 1; + if (!codec_dai) { + dev_err(rtd->card->dev, "Missing codec\n"); + return -EINVAL; } + /* check client and interface hw capabilities */ + if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && + snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) + playback = 1; + if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) && + snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) + capture = 1; + /* * Compress devices are unidirectional so only one of the directions * should be set, check for that (xor) |