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Message-Id: <20220607164910.306680891@linuxfoundation.org>
Date: Tue, 7 Jun 2022 18:58:36 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Zeal Robot <zealci@....com.cn>,
Lv Ruyi <lv.ruyi@....com.cn>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 059/452] drm: msm: fix error check return value of irq_of_parse_and_map()
From: Lv Ruyi <lv.ruyi@....com.cn>
[ Upstream commit b9e4f1d2b505df8e2439b63e67afaa287c1c43e2 ]
The irq_of_parse_and_map() function returns 0 on failure, and does not
return an negative value.
Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.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@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index e193865ce9a2..9baaaef706ab 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -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;
}
--
2.35.1
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