[PATCH AUTOSEL 5.15 01/65] Input: cpcap-pwrbutton - handle errors from platform_get_irq()
flat view
STALE1792d
From: Sasha Levin <sashal@kernel.org>
Date: 2021-11-16 19:17:59
Also in:
lkml, stable
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
From: Tang Bin <redacted> [ Upstream commit 58ae4004b9c4bb040958cf73986b687a5ea4d85d ] 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 <redacted> Link: https://lore.kernel.org/r/20210802121740.8700-1-tangbin@cmss.chinamobile.com (local) Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/input/misc/cpcap-pwrbutton.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/input/misc/cpcap-pwrbutton.c b/drivers/input/misc/cpcap-pwrbutton.c
index 0abef63217e21..372cb44d06357 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;
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2.33.0