From: Srinivas Neeli <srinivas.neeli@xilinx.com>
Date: Fri, 9 Apr 2021 14:08:05 +0000 (+0530)
Subject: gpio: zynq: Check return value of pm_runtime_get_sync
X-Git-Tag: v5.12.19~199
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d2b944b5683ad9abd76211a172b26952d2a4b04;p=thirdparty%2Fkernel%2Fstable.git

gpio: zynq: Check return value of pm_runtime_get_sync

[ Upstream commit a51b2fb94b04ab71e53a71b9fad03fa826941254 ]

Return value of "pm_runtime_get_sync" API was neither captured nor checked.
Fixed it by capturing the return value and then checking for any warning.

Addresses-Coverity: "check_return"
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 3521c1dc3ac00..fb8684d70fe31 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -1001,8 +1001,11 @@ err_pm_dis:
 static int zynq_gpio_remove(struct platform_device *pdev)
 {
 	struct zynq_gpio *gpio = platform_get_drvdata(pdev);
+	int ret;
 
-	pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_get_sync(&pdev->dev);
+	if (ret < 0)
+		dev_warn(&pdev->dev, "pm_runtime_get_sync() Failed\n");
 	gpiochip_remove(&gpio->chip);
 	clk_disable_unprepare(gpio->clk);
 	device_set_wakeup_capable(&pdev->dev, 0);