Input: omap4-keypad - fix handling of platform_get_irq() error

[ Upstream commit 4738dd1992fa13acfbbd71800c71c612f466fa44 ]

platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: f3a1ba60dbdb ("Input: omap4-keypad - use platform device helpers")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828145744.3636-2-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 3d2c60c..c6a468d 100644 (file)
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -253,10 +253,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
        }
 
        irq = platform_get_irq(pdev, 0);
-       if (!irq) {
-               dev_err(&pdev->dev, "no keyboard irq assigned\n");
-               return -EINVAL;
-       }
+       if (irq < 0)
+               return irq;
 
        keypad_data = kzalloc(sizeof(struct omap4_keypad), GFP_KERNEL);
        if (!keypad_data) {