From: Krzysztof Kozlowski krzk@kernel.org
[ Upstream commit c277e1f0dc3c7d7b5b028e20dd414df241642036 ]
platform_get_irq() returns -ERRNO on error. In such case casting to unsigned and comparing to 0 would pass the check.
Fixes: 7abf38d6d13c ("Input: twl4030-keypad - add device tree support") Reported-by: kernel test robot lkp@intel.com Signed-off-by: Krzysztof Kozlowski krzk@kernel.org Link: https://lore.kernel.org/r/20200828145744.3636-3-krzk@kernel.org Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/keyboard/twl4030_keypad.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index 323a0fb575a44..d87e7cd11ecb6 100644 --- a/drivers/input/keyboard/twl4030_keypad.c +++ b/drivers/input/keyboard/twl4030_keypad.c @@ -63,7 +63,7 @@ struct twl4030_keypad { bool autorepeat; unsigned int n_rows; unsigned int n_cols; - unsigned int irq; + int irq;
struct device *dbg_dev; struct input_dev *input; @@ -389,10 +389,8 @@ static int twl4030_kp_probe(struct platform_device *pdev) }
kp->irq = platform_get_irq(pdev, 0); - if (!kp->irq) { - dev_err(&pdev->dev, "no keyboard irq assigned\n"); - return -EINVAL; - } + if (kp->irq < 0) + return kp->irq;
error = matrix_keypad_build_keymap(keymap_data, NULL, TWL4030_MAX_ROWS,