From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
soc_pcm_components_open() try to call try_module_get() based on component->driver->module_get_upon_open. But, it should be always called, not relatead to .open callback. It should be called at (A) istead of (B)
=> (A) if (!component->driver->ops || !component->driver->ops->open) continue; => (B) if (component->driver->module_get_upon_open && !try_module_get(component->dev->driver->owner)) { ... }
ret = component->driver->ops->open(substream);
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- Mark, Pierre-Louis, Vinod, Liam
I think this patch is correct, but I'm not sure. I'm happy if someone can confirm it.
sound/soc/soc-pcm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 7737e00..7b4cda6 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -440,10 +440,6 @@ static int soc_pcm_components_open(struct snd_pcm_substream *substream, component = rtdcom->component; *last = component;
- if (!component->driver->ops || - !component->driver->ops->open) - continue; - if (component->driver->module_get_upon_open && !try_module_get(component->dev->driver->owner)) { dev_err(component->dev, @@ -452,6 +448,10 @@ static int soc_pcm_components_open(struct snd_pcm_substream *substream, return -ENODEV; }
+ if (!component->driver->ops || + !component->driver->ops->open) + continue; + ret = component->driver->ops->open(substream); if (ret < 0) { dev_err(component->dev,