Bring some drm module changes over from the XFree86 trunk:

- Reset 'bound' flag for an agp entry after undbind succeeded in
    drm_agpsupport.h (Egbert Eich).
- Ignore hw_lock for drm device if lock was set by a different instance (ie
    Xserver) to prevent second server from spinning in driver release
    function (currently only relevant for i8xx drm drivers) (David Dawes).
- Use the agpgart "key" for the unique handle for bindings rather than the
    memory address (the key is guaranteed to be unique) (David Dawes).

1 files changed, 4 insertions, 2 deletions

diff --git a/linux/drm_drv.h b/linux/drm_drv.h
index 0a4f3aeb..b2070d32 100644
--- a/linux/drm_drv.h
+++ b/linux/drm_drv.h
@@ -766,7 +766,7 @@ int DRM(release)( struct inode *inode, struct file *filp )
 	DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
 		   current->pid, (long)dev->device, dev->open_count );
 
-	if ( dev->lock.hw_lock &&
+	if ( priv->lock_count && dev->lock.hw_lock &&
 	     _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
 	     dev->lock.filp == filp ) {
 		DRM_DEBUG( "File %p released, freeing lock for context %d\n",
@@ -784,7 +784,7 @@ int DRM(release)( struct inode *inode, struct file *filp )
                                    server. */
 	}
 #if __HAVE_RELEASE
-	else if ( dev->lock.hw_lock ) {
+	else if ( priv->lock_count && dev->lock.hw_lock ) {
 		/* The lock is required to reclaim buffers */
 		DECLARE_WAITQUEUE( entry, current );
 
@@ -933,6 +933,8 @@ int DRM(lock)( struct inode *inode, struct file *filp,
         dev->lck_start = start = get_cycles();
 #endif
 
+	++priv->lock_count;
+
         if ( copy_from_user( &lock, (drm_lock_t *)arg, sizeof(lock) ) )
 		return -EFAULT;