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Commit a9286ff4 authored by William Dean's avatar William Dean Committed by Greg Kroah-Hartman
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watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe() 



[ Upstream commit 2d27e52841092e5831dd41f313028c668d816eb0 ]

The function devm_ioremap() in armada_37xx_wdt_probe() can fail, so
its return value should be checked.

Fixes: 54e3d9b5 ("watchdog: Add support for Armada 37xx CPU watchdog")
Reported-by: default avatarHacash Robot <hacashRobot@santino.com>
Signed-off-by: default avatarWilliam Dean <williamsukatube@gmail.com>
Reviewed-by: default avatarMarek Beh=C3=BAn <kabel@kernel.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220722030938.2925156-1-williamsukatube@163.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent ba406e31

drivers/watchdog/armada_37xx_wdt.c

+2 −0
Original line number Diff line number Diff line
@@ -274,6 +274,8 @@ static int armada_37xx_wdt_probe(struct platform_device *pdev) 
	if (!res)

		return -ENODEV;

	dev->reg = devm_ioremap(&pdev->dev, res->start, resource_size(res));

	if (!dev->reg)

		return -ENOMEM;



	/* init clock */

	dev->clk = devm_clk_get(&pdev->dev, NULL);