Hi Dmitry, Sorry for troubling you. I need to push others also. Please share your review comment. Thanks, On Tuesday 21 November 2017 09:41 PM, Arvind Yadav wrote:
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 in v4 : Return -ENXIO insted of keypad->irq. Which was not correct in v3. changes in v5 : Remove changes of v3 and v4. go back to version v2. Which is correct. No need to check for IRQ0 and return keypad->irq insted of -ENXIO. drivers/input/keyboard/ep93xx_keypad.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c index f77b295..01788a7 100644 --- a/drivers/input/keyboard/ep93xx_keypad.c +++ b/drivers/input/keyboard/ep93xx_keypad.c @@ -257,8 +257,8 @@ static int ep93xx_keypad_probe(struct platform_device *pdev) }keypad->irq = platform_get_irq(pdev, 0);- if (!keypad->irq) { - err = -ENXIO; + if (keypad->irq < 0) { + err = keypad->irq; goto failed_free; }
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