Merge remote branch 'intel/drm-intel-next' of /ssd/git/drm-next into drm-core-next

[mv-sheeva.git] / drivers / gpu / drm / drm_irq.c

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 55160d7c38b6e03c95e593d5151da0b013f80888..8304c42195fc455e88e58629ab44d75c19ce37da 100644 (file)
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1047,10 +1047,13 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
        struct timeval now;
        unsigned long flags;
        unsigned int seq;
+       int ret;
 
        e = kzalloc(sizeof *e, GFP_KERNEL);
-       if (e == NULL)
-               return -ENOMEM;
+       if (e == NULL) {
+               ret = -ENOMEM;
+               goto err_put;
+       }
 
        e->pipe = pipe;
        e->base.pid = current->pid;
@@ -1064,9 +1067,8 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
        spin_lock_irqsave(&dev->event_lock, flags);
 
        if (file_priv->event_space < sizeof e->event) {
-               spin_unlock_irqrestore(&dev->event_lock, flags);
-               kfree(e);
-               return -ENOMEM;
+               ret = -EBUSY;
+               goto err_unlock;
        }
 
        file_priv->event_space -= sizeof e->event;
@@ -1103,6 +1105,13 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
        spin_unlock_irqrestore(&dev->event_lock, flags);
 
        return 0;
+
+err_unlock:
+       spin_unlock_irqrestore(&dev->event_lock, flags);
+       kfree(e);
+err_put:
+       drm_vblank_put(dev, e->pipe);
+       return ret;
 }
 
 /**