The platform_get_irq() function returns negative error codes. It never
returns zero. Fix the check accordingly.
Fixes: 82c2a5751227 ("drm/msm/dp: tie dp_display_irq_handler() with dp driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/570755/
Link: https://lore.kernel.org/r/c12bb69b-d676-4345-9712-48aab48f2b48@moroto.mountain
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
struct platform_device *pdev = dp->dp_display.pdev;
dp->irq = platform_get_irq(pdev, 0);
- if (!dp->irq) {
+ if (dp->irq < 0) {
DRM_ERROR("failed to get irq\n");
- return -EINVAL;
+ return dp->irq;
}
rc = devm_request_irq(&pdev->dev, dp->irq, dp_display_irq_handler,