[PATCH AUTOSEL 6.3 24/37] ASoC: Intel: avs: Add missing checks on FE startup

From: Sasha Levin
Date: Wed May 31 2023 - 09:42:35 EST


From: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>

[ Upstream commit 25148f57a2a6d157779bae494852e172952ba980 ]

Constraint functions have return values, they should be checked for
potential errors.

Reviewed-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230519201711.4073845-8-amadeuszx.slawinski@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/intel/avs/pcm.c | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/sound/soc/intel/avs/pcm.c b/sound/soc/intel/avs/pcm.c
index 31c032a0f7e4b..1fbb2c2fadb55 100644
--- a/sound/soc/intel/avs/pcm.c
+++ b/sound/soc/intel/avs/pcm.c
@@ -468,21 +468,34 @@ static int avs_dai_fe_startup(struct snd_pcm_substream *substream, struct snd_so

host_stream = snd_hdac_ext_stream_assign(bus, substream, HDAC_EXT_STREAM_TYPE_HOST);
if (!host_stream) {
- kfree(data);
- return -EBUSY;
+ ret = -EBUSY;
+ goto err;
}

data->host_stream = host_stream;
- snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ goto err;
+
/* avoid wrap-around with wall-clock */
- snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME, 20, 178000000);
- snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_rates);
+ ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_TIME, 20, 178000000);
+ if (ret < 0)
+ goto err;
+
+ ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_rates);
+ if (ret < 0)
+ goto err;
+
snd_pcm_set_sync(substream);

dev_dbg(dai->dev, "%s fe STARTUP tag %d str %p",
__func__, hdac_stream(host_stream)->stream_tag, substream);

return 0;
+
+err:
+ kfree(data);
+ return ret;
}

static void avs_dai_fe_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
--
2.39.2