The config->pcm_hardware may be NULL when config->prealloc_buffer_size
is not zero, so it is better to move max_buffer_size assignment under
a separate condition.
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
---
sound/soc/soc-generic-dmaengine-pcm.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index c54c8ca8d715..8659cb1794f1 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -237,13 +237,15 @@ static int dmaengine_pcm_new(struct snd_soc_component *component,
size_t max_buffer_size;
unsigned int i;
- if (config && config->prealloc_buffer_size) {
+ if (config && config->prealloc_buffer_size)
prealloc_buffer_size = config->prealloc_buffer_size;
- max_buffer_size = config->pcm_hardware->buffer_bytes_max;
- } else {
+ else
prealloc_buffer_size = prealloc_buffer_size_kbytes * 1024;
+
+ if (config && config->pcm_hardware && config->pcm_hardware->buffer_bytes_max)
+ max_buffer_size = config->pcm_hardware->buffer_bytes_max;
+ else
max_buffer_size = SIZE_MAX;
- }
for_each_pcm_streams(i) {
struct snd_pcm_substream *substream = rtd->pcm->streams[i].substream;
--
2.17.1
