Messages in this thread Patch in this message | | | From | williamsukatube@163 ... | Subject | [PATCH] watchdog: armada_37xx_wdt: check the return value of devm_ioremap() in armada_37xx_wdt_probe() | Date | Fri, 22 Jul 2022 11:09:38 +0800 |
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From: William Dean <williamsukatube@gmail.com>
The function devm_ioremap() in armada_37xx_wdt_probe() can fail, so its return value should be checked.
Fixes: 54e3d9b518c8a ("watchdog: Add support for Armada 37xx CPU watchdog") Reported-by: Hacash Robot <hacashRobot@santino.com> Signed-off-by: William Dean <williamsukatube@gmail.com> --- drivers/watchdog/armada_37xx_wdt.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/watchdog/armada_37xx_wdt.c b/drivers/watchdog/armada_37xx_wdt.c index 1635f421ef2c..854b1cc723cb 100644 --- a/drivers/watchdog/armada_37xx_wdt.c +++ b/drivers/watchdog/armada_37xx_wdt.c @@ -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); -- 2.25.1
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