We can occasionally get -EINPROGRESS for pm_runtime_get.
This is happening when an interrupt is fired before PM runtime had time
to update the PM state to RESUMED.
In that case, don't print any error.
Signed-off-by: Alexandre Bailon <abailon@xxxxxxxxxxxx>
---
drivers/dma/cppi41.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 025fee4..2306020 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -320,7 +320,7 @@ static irqreturn_t cppi41_irq(int irq, void *data)
int error;
error = pm_runtime_get(cdd->ddev.dev);
- if (error < 0)
+ if ((error != -EINPROGRESS) && error < 0)
dev_err(cdd->ddev.dev, "%s pm runtime get: %i\n",
__func__, error);
@@ -492,8 +492,7 @@ static void cppi41_dma_issue_pending(struct dma_chan *chan)
*/
if (error == -EINPROGRESS) {
spin_lock_irqsave(&cdd->lock, flags);
- if (list_empty(&cdd->pending))
- active = true;
+ active = !!list_empty(&cdd->pending);
spin_unlock_irqrestore(&cdd->lock, flags);
}
}
--
2.10.2
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