linux-kernel - [PATCH 61/78] media: camss-csiphy: 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: <134315407c8289ee207f2ffd554d0bd4ee70793d.1619191723.git.mchehab+huawei@kernel.org>
Date:   Sat, 24 Apr 2021 08:45:11 +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>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Robert Foss <robert.foss@...aro.org>,
        Todor Tomov <todor.too@...il.com>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: [PATCH 61/78] media: camss-csiphy: 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/qcom/camss/camss-csiphy.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
index b3c3bf19e522..8e18b8e668cf 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
@@ -197,11 +197,9 @@ static int csiphy_set_power(struct v4l2_subdev *sd, int on)
 	if (on) {
 		int ret;
 
-		ret = pm_runtime_get_sync(dev);
-		if (ret < 0) {
-			pm_runtime_put_sync(dev);
+		ret = pm_runtime_resume_and_get(dev);
+		if (ret < 0)
 			return ret;
-		}
 
 		ret = csiphy_set_clock_rates(csiphy);
 		if (ret < 0) {
-- 
2.30.2