linux-kernel - [PATCH v2 61/79] media: coda: use pm_runtime_resume_and

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Message-Id: <2016c20ba94df57736e677fc7acf5cb109ac75a5.1619518193.git.mchehab+huawei@kernel.org>
Date:   Tue, 27 Apr 2021 12:13:28 +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>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v2 61/79] media: coda: 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/platform/coda/coda-common.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index bd666c858fa1..13ff05e7d850 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -2660,10 +2660,10 @@ static int coda_open(struct file *file)
 	ctx->use_vdoa = false;
 
 	/* Power up and upload firmware if necessary */
-	ret = pm_runtime_get_sync(dev->dev);
+	ret = pm_runtime_resume_and_get(dev->dev);
 	if (ret < 0) {
 		v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
-		goto err_pm_get;
+		goto err_fh_del;
 	}
 
 	ret = clk_prepare_enable(dev->clk_per);
@@ -2709,6 +2709,7 @@ static int coda_open(struct file *file)
 	clk_disable_unprepare(dev->clk_per);
 err_pm_get:
 	pm_runtime_put_sync(dev->dev);
+err_fh_del:
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 err_coda_name_init:
-- 
2.30.2