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[08/10,v3] Input: twl4030-pwrbutton: Handle return value of platform_get_irq

Message ID bed6484b6919f26e7119934a33b6f9b1e94de3c9.1510999334.git.arvind.yadav.cs@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Arvind Yadav Nov. 18, 2017, 10:55 a.m. UTC 
platform_get_irq() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
              return irq instead of -ENODEV.
changes in v3 :
              Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.

 drivers/input/misc/twl4030-pwrbutton.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index b307cca..0dcf311 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -58,6 +58,9 @@  static int twl4030_pwrbutton_probe(struct platform_device *pdev)
 	int irq = platform_get_irq(pdev, 0);
 	int err;
 
+	if (irq <= 0)
+		return irq;
+
 	pwr = devm_input_allocate_device(&pdev->dev);
 	if (!pwr) {
 		dev_err(&pdev->dev, "Can't allocate power button\n");