From: Miaoqian Lin linmq006@gmail.com

platform_get_irq() returns non-zero IRQ number on success, negative error number on failure. And the doc of platform_get_irq() provides a usage example:

int irq = platform_get_irq(pdev, 0); if (irq < 0) return irq;

Fix the check of return value to catch errors correctly.

Cc: stable@vger.kernel.org Fixes: ad7fcbc308b0 ("slimbus: qcom: Add Qualcomm Slimbus controller driver") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- drivers/slimbus/qcom-ctrl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/slimbus/qcom-ctrl.c b/drivers/slimbus/qcom-ctrl.c index f04b961b96cd..ec58091fc948 100644 --- a/drivers/slimbus/qcom-ctrl.c +++ b/drivers/slimbus/qcom-ctrl.c @@ -510,9 +510,9 @@ static int qcom_slim_probe(struct platform_device *pdev) }

ctrl->irq = platform_get_irq(pdev, 0); - if (!ctrl->irq) { + if (ctrl->irq < 0) { dev_err(&pdev->dev, "no slimbus IRQ\n"); - return -ENODEV; + return ctrl->irq; }

sctrl = &ctrl->ctrl;