From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Bin Liu <b-liu-l0cyMroinI0@public.gmane.org>,
Daniel Mack <zonque-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Felipe Balbi
<felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
George Cherian <george.cherian-l0cyMroinI0@public.gmane.org>,
Peter Ujfalusi <peter.ujfalusi-l0cyMroinI0@public.gmane.org>,
Sebastian Andrzej Siewior
<bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime
Date: Tue, 13 Sep 2016 10:22:43 -0700 [thread overview]
Message-ID: <20160913172243.13012-1-tony@atomide.com> (raw)
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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next reply other threads:[~2016-09-13 17:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-13 17:22 Tony Lindgren [this message]
[not found] ` <20160913172243.13012-1-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-09-14 13:43 ` [PATCH] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime Vinod Koul
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