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Subject[PATCH] drm/irq: Add irq as false detection
Date
Add the detection of false for irq, so that the EINVAL is not
returned when dev->irq_enabled is false.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
---
drivers/gpu/drm/drm_irq.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 09d6e9e..7537a3d 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -172,6 +172,9 @@ int drm_irq_uninstall(struct drm_device *dev)
bool irq_enabled;
int i;

+ if (!dev->irq_enabled || !dev)
+ return 0;
+
irq_enabled = dev->irq_enabled;
dev->irq_enabled = false;

--
2.7.4
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