linux-kernel - [PATCH v5 03/30] media: i2c: dw9768: use pm_runtime_resume_and

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Message-Id: <29c8e9ffa2ca7d1472e8ae14ead4726cdcde9d96.1620314098.git.mchehab+huawei@kernel.org>
Date:   Thu,  6 May 2021 17:22:59 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Dongchun Zhu <dongchun.zhu@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v5 03/30] media: i2c: dw9768: use pm_runtime_resume_and_get()

Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
added pm_runtime_resume_and_get() in order to automatically handle
dev->power.usage_count decrement on errors.

Use the new API, in order to cleanup the error check logic.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/media/i2c/dw9768.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/media/i2c/dw9768.c b/drivers/media/i2c/dw9768.c
index 8b8cb4b077b5..c086580efac7 100644
--- a/drivers/media/i2c/dw9768.c
+++ b/drivers/media/i2c/dw9768.c
@@ -374,15 +374,7 @@ static const struct v4l2_ctrl_ops dw9768_ctrl_ops = {
 
 static int dw9768_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 {
-	int ret;
-
-	ret = pm_runtime_get_sync(sd->dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(sd->dev);
-		return ret;
-	}
-
-	return 0;
+	return pm_runtime_resume_and_get(sd->dev);
 }
 
 static int dw9768_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-- 
2.30.2