Messages in this thread Patch in this message | | | From | Tang Bin <> | Subject | [PATCH] input: cpcap-pwrbutton: Add an error handling | Date | Mon, 2 Aug 2021 20:17:40 +0800 |
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The function cpcap_power_button_probe() does not perform sufficient error checking after executing platform_get_irq(), thus fix it.
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> --- drivers/input/misc/cpcap-pwrbutton.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/input/misc/cpcap-pwrbutton.c b/drivers/input/misc/cpcap-pwrbutton.c index 0abef6321..0a1f2e8b4 100644 --- a/drivers/input/misc/cpcap-pwrbutton.c +++ b/drivers/input/misc/cpcap-pwrbutton.c @@ -57,6 +57,9 @@ static int cpcap_power_button_probe(struct platform_device *pdev) int irq = platform_get_irq(pdev, 0); int err; + if (irq < 0) + return irq; + button = devm_kmalloc(&pdev->dev, sizeof(*button), GFP_KERNEL); if (!button) return -ENOMEM; -- 2.20.1.windows.1
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