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@xxxxxxxxxxxxx>
---
Changes in v2,v3:
- none
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 285441d6aeed..2ab2ddc1294d 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -86,10 +86,10 @@ static int dmaengine_pcm_hw_params(struct snd_soc_component *component,
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) {
int ret = prepare_slave_config(substream, params, &slave_config);
--
2.32.0
