From: Tang Bin Date: Mon, 6 Sep 2021 01:57:32 +0000 (-0700) Subject: Input: cpcap-pwrbutton - handle errors from platform_get_irq() X-Git-Tag: v5.16-rc1~39^2^2~53 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=58ae4004b9c4bb040958cf73986b687a5ea4d85d;p=linux-block.git Input: cpcap-pwrbutton - handle errors from platform_get_irq() 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 Link: https://lore.kernel.org/r/20210802121740.8700-1-tangbin@cmss.chinamobile.com Signed-off-by: Dmitry Torokhov --- diff --git a/drivers/input/misc/cpcap-pwrbutton.c b/drivers/input/misc/cpcap-pwrbutton.c index 0abef63217e2..372cb44d0635 100644 --- a/drivers/input/misc/cpcap-pwrbutton.c +++ b/drivers/input/misc/cpcap-pwrbutton.c @@ -54,9 +54,13 @@ static irqreturn_t powerbutton_irq(int irq, void *_button) static int cpcap_power_button_probe(struct platform_device *pdev) { struct cpcap_power_button *button; - int irq = platform_get_irq(pdev, 0); + int irq; int err; + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + button = devm_kmalloc(&pdev->dev, sizeof(*button), GFP_KERNEL); if (!button) return -ENOMEM;