Merge "disp: msm: sde: add null check for drm file in msm_release"

#define MSM_VERSION_MINOR	2

#define MSM_VERSION_PATCHLEVEL	0

static DEFINE_MUTEX(msm_release_lock);

static void msm_fb_output_poll_changed(struct drm_device *dev)

{

	struct msm_drm_private *priv = NULL;

static int msm_release(struct inode *inode, struct file *filp)

{

	struct drm_file *file_priv = filp->private_data;

	struct drm_minor *minor = file_priv->minor;

	struct drm_device *dev = minor->dev;

	struct msm_drm_private *priv = dev->dev_private;

	struct drm_minor *minor;

	struct drm_device *dev;

	struct msm_drm_private *priv;

	struct msm_drm_event *node, *temp, *tmp_node;

	u32 count;

	unsigned long flags;

	LIST_HEAD(tmp_head);

	int ret = 0;

	mutex_lock(&msm_release_lock);

	if (!file_priv) {

		ret = -EINVAL;

		goto end;

	}

	minor = file_priv->minor;

	dev = minor->dev;

	priv = dev->dev_private;

	spin_lock_irqsave(&dev->event_lock, flags);

	list_for_each_entry_safe(node, temp, &priv->client_event_list,

		kfree(node);

	}

	return drm_release(inode, filp);

	ret = drm_release(inode, filp);

	filp->private_data = NULL;

end:

	mutex_unlock(&msm_release_lock);

	return ret;

}

/**