linux-kernel - [PATCH v2 53/79] media: i2c: ov7740: use pm_runtime_resume_and

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1e08b1b29b49c9c390d29718328f6e53c9310798.1619518193.git.mchehab+huawei@kernel.org>
Date:   Tue, 27 Apr 2021 12:13:20 +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>,
        Wenyou Yang <wenyou.yang@...rochip.com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v2 53/79] media: i2c: ov7740: 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/ov7740.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/ov7740.c b/drivers/media/i2c/ov7740.c
index ed6904b2e8f5..74219f67f245 100644
--- a/drivers/media/i2c/ov7740.c
+++ b/drivers/media/i2c/ov7740.c
@@ -624,11 +624,9 @@ static int ov7740_set_stream(struct v4l2_subdev *sd, int enable)
 	}
 
 	if (enable) {
-		ret = pm_runtime_get_sync(&client->dev);
-		if (ret < 0) {
-			pm_runtime_put_noidle(&client->dev);
+		ret = pm_runtime_resume_and_get(&client->dev);
+		if (ret < 0)
 			goto err_unlock;
-		}
 
 		ret = ov7740_start_streaming(ov7740);
 		if (ret)
-- 
2.30.2