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drm: msm: fix error check return value of irq_of_parse_and_map()

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[ Upstream commit b9e4f1d2b5 ]

The irq_of_parse_and_map() function returns 0 on failure, and does not
return an negative value.

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/483175/
Link: https://lore.kernel.org/r/20220424031959.3172406-1-lv.ruyi@zte.com.cn
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lv Ruyi
2022-04-24 03:19:59 +00:00
committed by Greg Kroah-Hartman
parent ad97425d23
commit 0325c08ae2
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
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@@ -598,9 +598,9 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
pdev = mdp5_kms->pdev;
irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
if (irq < 0) {
ret = irq;
DRM_DEV_ERROR(&pdev->dev, "failed to get irq: %d\n", ret);
if (!irq) {
ret = -EINVAL;
DRM_DEV_ERROR(&pdev->dev, "failed to get irq\n");
goto fail;
}