From ef3939d95c321feae83a634947b4404fb4d30e1d Mon Sep 17 00:00:00 2001
From: Lv Ruyi <lv.ruyi@zte.com.cn>
Date: Sun, 24 Apr 2022 03:19:59 +0000
Subject: drm: msm: fix error check return value of irq_of_parse_and_map()
Git-commit: b9e4f1d2b505df8e2439b63e67afaa287c1c43e2
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
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>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 72ec33b89730..9b7bbc3adb97 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -576,9 +576,9 @@ static int mdp5_kms_init(struct drm_device *dev)
}
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;
}
--
2.38.1