linux-kernel - [PATCH 5.16 0941/1017] watchdog: rti-wdt: Add missing pm_runtime

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Message-Id: <20220405070422.147201922@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:30:54 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Miaoqian Lin <linmq006@...il.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>
Subject: [PATCH 5.16 0941/1017] watchdog: rti-wdt: Add missing pm_runtime_disable() in probe function

From: Miaoqian Lin <linmq006@...il.com>

commit d055ef3a2c6919cff504ae3b710c96318d545fd2 upstream.

If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().

Fixes: 2d63908bdbfb ("watchdog: Add K3 RTI watchdog support")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Link: https://lore.kernel.org/r/20220105092114.23932-1-linmq006@gmail.com
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@...ux-watchdog.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/watchdog/rti_wdt.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/watchdog/rti_wdt.c
+++ b/drivers/watchdog/rti_wdt.c
@@ -228,6 +228,7 @@ static int rti_wdt_probe(struct platform
 	ret = pm_runtime_get_sync(dev);
 	if (ret) {
 		pm_runtime_put_noidle(dev);
+		pm_runtime_disable(&pdev->dev);
 		return dev_err_probe(dev, ret, "runtime pm failed\n");
 	}