On 8/2/19 6:55 AM, Vinod Koul wrote:
On 25-07-19, 18:39, Pierre-Louis Bossart wrote:
This should not happen in production systems but we should test for
all callback arguments before invoking the config_stream callback.
so you are saying callback arg is mandatory, if so please document that
assumption
no, what this says is that if a config_stream is provided then it needs
to have a valid argument.
I am not sure what you mean by "document that assumption", comment in
the code (where?) or SoundWire documentation?
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
drivers/soundwire/intel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 68832e613b1e..497879dd9c0d 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -509,7 +509,7 @@ static int intel_config_stream(struct sdw_intel *sdw,
struct snd_soc_dai *dai,
struct snd_pcm_hw_params *hw_params, int link_id)
{
- if (sdw->res->ops && sdw->res->ops->config_stream)
+ if (sdw->res->ops && sdw->res->ops->config_stream && sdw->res->arg)
return sdw->res->ops->config_stream(sdw->res->arg,
substream, dai, hw_params, link_id);
--
2.20.1
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