On 24/04/2022 06:24, cgel.zte@gmail.com wrote:
From: Lv Ruyi lv.ruyi@zte.com.cn
The irq_of_parse_and_map() function returns 0 on failure, and does not return an negative value.
Fixes: 8ede2ecc3e5e ("drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets") Reported-by: Zeal Robot zealci@zte.com.cn Signed-off-by: Lv Ruyi lv.ruyi@zte.com.cn
Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org
v2: don't print rc, and return -EINVAL rather than 0
drivers/gpu/drm/msm/dp/dp_display.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index a42732b67349..c3566e6564b1 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1239,10 +1239,9 @@ int dp_display_request_irq(struct msm_dp *dp_display) dp = container_of(dp_display, struct dp_display_private, dp_display);
dp->irq = irq_of_parse_and_map(dp->pdev->dev.of_node, 0);
- if (dp->irq < 0) {
rc = dp->irq;DRM_ERROR("failed to get irq: %d\n", rc);return rc;
if (!dp->irq) {
DRM_ERROR("failed to get irq\n");return -EINVAL;}
rc = devm_request_irq(&dp->pdev->dev, dp->irq,