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* [PATCH] soundwire: stream: restore cumulative bus bandwidth when compute_params callback failed
@ 2023-03-16  1:30 Bard Liao
  2023-03-16  6:03 ` Vinod Koul
  0 siblings, 1 reply; 2+ messages in thread
From: Bard Liao @ 2023-03-16  1:30 UTC (permalink / raw)
  To: alsa-devel, vkoul
  Cc: vinod.koul, linux-kernel, pierre-louis.bossart, bard.liao

From: Shuming Fan <shumingf@realtek.com>

The _sdw_prepare_stream function just returns the error code when
compute_params callback failed.
The cumulative bus bandwidth will keep the value and won't be decreased
by sdw_deprepare_stream function.
We should restore the value of cumulative bus bandwidth when
compute_params callback failed.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 8c6da1739e3d..136b6850a3f0 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1369,7 +1369,7 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream,
 			if (ret < 0) {
 				dev_err(bus->dev, "Compute params failed: %d\n",
 					ret);
-				return ret;
+				goto restore_params;
 			}
 		}
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] soundwire: stream: restore cumulative bus bandwidth when compute_params callback failed
  2023-03-16  1:30 [PATCH] soundwire: stream: restore cumulative bus bandwidth when compute_params callback failed Bard Liao
@ 2023-03-16  6:03 ` Vinod Koul
  0 siblings, 0 replies; 2+ messages in thread
From: Vinod Koul @ 2023-03-16  6:03 UTC (permalink / raw)
  To: Bard Liao; +Cc: alsa-devel, linux-kernel, pierre-louis.bossart, bard.liao

On 16-03-23, 09:30, Bard Liao wrote:
> From: Shuming Fan <shumingf@realtek.com>
> 
> The _sdw_prepare_stream function just returns the error code when
> compute_params callback failed.
> The cumulative bus bandwidth will keep the value and won't be decreased
> by sdw_deprepare_stream function.
> We should restore the value of cumulative bus bandwidth when
> compute_params callback failed.

Applied, thanks

-- 
~Vinod

^ permalink raw reply	[flat|nested] 2+ messages in thread

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