[PATCH] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime

[PATCH] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime

[Tony Lindgren]

We can occasionally get -EINPROGRESS for pm_runtime_get. In that case
we can just continue as we're queueing transfers anyways when
pm_runtime_active is not set.

Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support")
Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
---
 drivers/dma/cppi41.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -462,7 +462,7 @@ static void cppi41_dma_issue_pending(struct dma_chan *chan)
 
 	/* PM runtime paired with dmaengine_desc_get_callback_invoke */
 	error = pm_runtime_get(cdd->ddev.dev);
-	if (error < 0) {
+	if ((error != -EINPROGRESS) && error < 0) {
 		dev_err(cdd->ddev.dev, "Failed to pm_runtime_get: %i\n",
 			error);
 
-- 
2.9.3
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Re: [PATCH] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime

[Vinod Koul]

On Tue, Sep 13, 2016 at 10:22:43AM -0700, Tony Lindgren wrote:
> We can occasionally get -EINPROGRESS for pm_runtime_get. In that case
> we can just continue as we're queueing transfers anyways when
> pm_runtime_active is not set.

Applied, thanks

-- 
~Vinod
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