From Eric Anholt + Jon Smirl:

Don't ioremap the framebuffer area. The ioremapped area wasn't used by
anything.

drivers/char/drm/drm_bufs.h

@@ -147,7 +147,9 @@ int DRM(addmap)( struct inode *inode, struct file *filp,
 					      MTRR_TYPE_WRCOMB, 1 );
 		}
 #endif
-		map->handle = DRM(ioremap)( map->offset, map->size, dev );
+		if (map->type == _DRM_REGISTERS)
+			map->handle = DRM(ioremap)( map->offset, map->size,
+						    dev );
 		break;
 
 	case _DRM_SHM:

drivers/char/drm/mga_dma.c

@@ -500,14 +500,6 @@ static int mga_do_init_dma( drm_device_t *dev, drm_mga_init_t *init )
 		return DRM_ERR(EINVAL);
 	}
 
-	DRM_FIND_MAP( dev_priv->fb, init->fb_offset );
-	if(!dev_priv->fb) {
-		DRM_ERROR( "failed to find framebuffer!\n" );
-		/* Assign dev_private so we can do cleanup. */
-		dev->dev_private = (void *)dev_priv;
-		mga_do_cleanup_dma( dev );
-		return DRM_ERR(EINVAL);
-	}
 	DRM_FIND_MAP( dev_priv->mmio, init->mmio_offset );
 	if(!dev_priv->mmio) {
 		DRM_ERROR( "failed to find mmio region!\n" );

drivers/char/drm/mga_drv.h

@@ -91,7 +91,6 @@ typedef struct drm_mga_private {
 	unsigned int texture_size;
 
 	drm_local_map_t *sarea;
-	drm_local_map_t *fb;
 	drm_local_map_t *mmio;
 	drm_local_map_t *status;
 	drm_local_map_t *warp;

drivers/char/drm/r128_cce.c

@@ -486,13 +486,6 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 		return DRM_ERR(EINVAL);
 	}
 
-	DRM_FIND_MAP( dev_priv->fb, init->fb_offset );
-	if(!dev_priv->fb) {
-		DRM_ERROR("could not find framebuffer!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce( dev );
-		return DRM_ERR(EINVAL);
-	}
 	DRM_FIND_MAP( dev_priv->mmio, init->mmio_offset );
 	if(!dev_priv->mmio) {
 		DRM_ERROR("could not find mmio region!\n");

drivers/char/drm/r128_drv.h

@@ -100,7 +100,6 @@ typedef struct drm_r128_private {
 	u32 span_pitch_offset_c;
 
 	drm_local_map_t *sarea;
-	drm_local_map_t *fb;
 	drm_local_map_t *mmio;
 	drm_local_map_t *cce_ring;
 	drm_local_map_t *ring_rptr;

drivers/char/drm/radeon_cp.c

@@ -1118,13 +1118,6 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
 		return DRM_ERR(EINVAL);
 	}
 
-	DRM_FIND_MAP( dev_priv->fb, init->fb_offset );
-	if(!dev_priv->fb) {
-		DRM_ERROR("could not find framebuffer!\n");
-		dev->dev_private = (void *)dev_priv;
-		radeon_do_cleanup_cp(dev);
-		return DRM_ERR(EINVAL);
-	}
 	DRM_FIND_MAP( dev_priv->mmio, init->mmio_offset );
 	if(!dev_priv->mmio) {
 		DRM_ERROR("could not find mmio region!\n");

drivers/char/drm/radeon_drv.h

@@ -135,7 +135,6 @@ typedef struct drm_radeon_private {
 	unsigned long gart_textures_offset;
 
 	drm_local_map_t *sarea;
-	drm_local_map_t *fb;
 	drm_local_map_t *mmio;
 	drm_local_map_t *cp_ring;
 	drm_local_map_t *ring_rptr;