lkml.org 
[lkml]   [2022]   [Apr]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.4 149/475] ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
Date
From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>

[ Upstream commit 9a1e13440a4f2e7566fd4c5eae6a53e6400e08a4 ]

Even if struct snd_dmaengine_pcm_config is used, prepare_slave_config()
callback might not be set. Check if this callback is set before using it.

Fixes: fa654e085300 ("ASoC: dmaengine-pcm: Provide default config")
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307122202.2251639-2-codrin.ciubotariu@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/soc-generic-dmaengine-pcm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 5552c66ca642..ca4b17bd95d1 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -91,10 +91,10 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,

memset(&slave_config, 0, sizeof(slave_config));

- if (!pcm->config)
- prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
- else
+ if (pcm->config && pcm->config->prepare_slave_config)
prepare_slave_config = pcm->config->prepare_slave_config;
+ else
+ prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;

if (prepare_slave_config) {
ret = prepare_slave_config(substream, params, &slave_config);
--
2.34.1


\
 
 \ /
  Last update: 2022-04-14 16:30    [W:1.194 / U:1.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site