diff options
| author | Lv Ruyi <lv.ruyi@zte.com.cn> | 2022-04-24 05:24:18 +0200 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2022-05-02 01:13:01 +0200 |
| commit | e92d0d93f86699b7b25c7906613fdc374d66c8ca (patch) | |
| tree | 2a8f9536a315580c4ec96c16ebfe2812e1a7ac0e | |
| parent | drm/msm/dp: stop event kernel thread when DP unbind (diff) | |
| download | linux-e92d0d93f86699b7b25c7906613fdc374d66c8ca.tar.xz linux-e92d0d93f86699b7b25c7906613fdc374d66c8ca.zip | |
drm/msm/dp: fix error check return value of irq_of_parse_and_map()
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>
Patchwork: https://patchwork.freedesktop.org/patch/483176/
Link: https://lore.kernel.org/r/20220424032418.3173632-1-lv.ruyi@zte.com.cn
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_display.c | 7 |
1 files 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 0a8b845b7e40..2119d708eb9f 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1278,10 +1278,9 @@ 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, |