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From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Ulrich Hecht <uli@fpond.eu>,
	linux-media@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
	"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>,
	"Ulrich Hecht" <uli+renesas@fpond.eu>
Subject: [PATCH v2 3/8] rcar-vin: Allow interrupting lock when trying to open the video device
Date: Thu, 16 May 2019 03:14:12 +0200
Message-ID: <20190516011417.10590-4-niklas.soderlund+renesas@ragnatech.se> (raw)
In-Reply-To: <20190516011417.10590-1-niklas.soderlund+renesas@ragnatech.se>

The user should be allowed to break waiting for the lock when opening
the video device.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
---
 drivers/media/platform/rcar-vin/rcar-v4l2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 0841f1a0bfd7ba3a..f67cef97b89a3bd4 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -821,7 +821,9 @@ static int rvin_open(struct file *file)
 	struct rvin_dev *vin = video_drvdata(file);
 	int ret;
 
-	mutex_lock(&vin->lock);
+	ret = mutex_lock_interruptible(&vin->lock);
+	if (ret)
+		return ret;
 
 	file->private_data = vin;
 
-- 
2.21.0


  parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-16  1:14 [PATCH v2 0/8] rcar-vin: Merge Gen2 and Gen3 file operations Niklas Söderlund
2019-05-16  1:14 ` [PATCH v2 1/8] rcar-vin: Do not call pm_runtime_{resume,suspend}() Niklas Söderlund
2019-05-16  7:23   ` Geert Uytterhoeven
2019-05-16 11:32     ` Laurent Pinchart
2019-05-16  1:14 ` [PATCH v2 2/8] rcar-vin: Remove unneeded calls to pm_runtime_{enable,disable} Niklas Söderlund
2019-05-16  7:27   ` Geert Uytterhoeven
2019-05-16 11:34     ` Laurent Pinchart
2019-05-16  1:14 ` Niklas Söderlund [this message]
2019-05-16 11:21   ` [PATCH v2 3/8] rcar-vin: Allow interrupting lock when trying to open the video device Laurent Pinchart
2019-05-16  1:14 ` [PATCH v2 4/8] rcar-vin: Do not sync subdevice format when opening " Niklas Söderlund
2019-05-16 11:26   ` Laurent Pinchart
2019-05-16 13:25     ` Niklas Söderlund
2019-05-16  1:14 ` [PATCH v2 5/8] rcar-vin: Move pm_runtime_{get,put} out of helpers Niklas Söderlund
2019-05-16 11:39   ` Laurent Pinchart
2019-05-16  1:14 ` [PATCH v2 6/8] rcar-vin: Merge helpers dealing with powering the parallel subdevice Niklas Söderlund
2019-05-16  7:40   ` Ulrich Hecht
2019-05-16 11:44   ` Laurent Pinchart
2019-05-16  1:14 ` [PATCH v2 7/8] rcar-vin: Fold rvin_initialize_device() into rvin_open() Niklas Söderlund
2019-05-16 11:45   ` Laurent Pinchart
2019-05-16  1:14 ` [PATCH v2 8/8] rcar-vin: Merge Gen2 and Gen3 file operations Niklas Söderlund
2019-05-16 11:48   ` Laurent Pinchart

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