[PATCH] drm/irq: Add irq as false detection

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;