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

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From: Lv Ruyi <lv.ruyi@xxxxxxxxxx>

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

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Lv Ruyi <lv.ruyi@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 3b92372e7bdf..1fb1ed9e95d9 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -570,7 +570,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
 	}
 
 	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
-	if (irq < 0) {
+	if (!irq) {
 		ret = irq;
 		DRM_DEV_ERROR(&pdev->dev, "failed to get irq: %d\n", ret);
 		goto fail;
-- 
2.25.1




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