Thread (840 messages) 840 messages, 15 authors, 2021-07-20
STALE1827d REVIEWED: 1 (1M)

[PATCH 5.13 270/800] media: s5p_cec: decrement usage count if disabled

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:29:17
Also in: lkml
Subsystem: arm/samsung s5p series hdmi cec subsystem support, cec framework, media input infrastructure (v4l/dvb), the rest · Maintainers: Marek Szyprowski, Hans Verkuil, Mauro Carvalho Chehab, Linus Torvalds

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

[ Upstream commit 747bad54a677d8633ec14b39dfbeb859c821d7f2 ]

There's a bug at s5p_cec_adap_enable(): if called to
disable the device, it should call pm_runtime_put()
instead of pm_runtime_disable(), as the goal here is to
decrement the usage_count and not to disable PM runtime.

Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fixes: 1bcbf6f4b6b0 ("[media] cec: s5p-cec: Add s5p-cec driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/cec/platform/s5p/s5p_cec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c
index 2250c1cbc64e..028a09a7531e 100644
--- a/drivers/media/cec/platform/s5p/s5p_cec.c
+++ b/drivers/media/cec/platform/s5p/s5p_cec.c
@@ -54,7 +54,7 @@ static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable)
 	} else {
 		s5p_cec_mask_tx_interrupts(cec);
 		s5p_cec_mask_rx_interrupts(cec);
-		pm_runtime_disable(cec->dev);
+		pm_runtime_put(cec->dev);
 	}
 
 	return 0;
-- 
2.30.2


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