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Subject[PATCH] input: cpcap-pwrbutton: Add an error handling
Date
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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