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 <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
