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 irq insted of -EINVAL.
changes in v3 :
Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.
drivers/input/keyboard/omap4-keypad.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 940d38b..9ad840c 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -251,9 +251,9 @@ static int omap4_keypad_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (!irq) {
+ if (irq <= 0) {
dev_err(&pdev->dev, "no keyboard irq assigned\n");
- return -EINVAL;
+ return irq;
}
keypad_data = kzalloc(sizeof(struct omap4_keypad), GFP_KERNEL);
--
2.7.4
--
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