linux-kernel - [PATCH v5 16/25] media: rcar-fcp: use pm_runtime_resume_and

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Date:   Thu,  6 May 2021 17:25:54 +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>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org
Subject: [PATCH v5 16/25] media: rcar-fcp: 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.

As a bonus, pm_runtime_resume_and_get() always return 0 on success.
So, the code can be simplified.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/media/platform/rcar-fcp.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/media/platform/rcar-fcp.c b/drivers/media/platform/rcar-fcp.c
index 5c03318ae07b..a3a7afc03d7b 100644
--- a/drivers/media/platform/rcar-fcp.c
+++ b/drivers/media/platform/rcar-fcp.c
@@ -101,13 +101,7 @@ int rcar_fcp_enable(struct rcar_fcp_device *fcp)
 	if (!fcp)
 		return 0;
 
-	ret = pm_runtime_get_sync(fcp->dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(fcp->dev);
-		return ret;
-	}
-
-	return 0;
+	return pm_runtime_resume_and_get(fcp->dev);
 }
 EXPORT_SYMBOL_GPL(rcar_fcp_enable);
 
-- 
2.30.2