The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct. Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> --- changes in v2 : Return keypad->irq insted of -ENXIO. changes in v3 : Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid. changes ib v4 : Return -ENXIO insted of keypad->irq. Which was not correct in v3. drivers/input/keyboard/ep93xx_keypad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c index f77b295..c6eb31a 100644 --- a/drivers/input/keyboard/ep93xx_keypad.c +++ b/drivers/input/keyboard/ep93xx_keypad.c @@ -257,7 +257,7 @@ static int ep93xx_keypad_probe(struct platform_device *pdev) } keypad->irq = platform_get_irq(pdev, 0); - if (!keypad->irq) { + if (keypad->irq <= 0) { err = -ENXIO; goto failed_free; } -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html