Merge ../linux-2.6-watchdog-mm

[linux-2.6-omap-h63xx.git] / drivers / char / drm / drm_bufs.c

diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index 029baea33b628772bb0f238acb3d59392117fa9c..9f65f5697ba81bd05f4811bce230295d88067c11 100644 (file)
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -237,6 +237,8 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
 
        list = drm_alloc(sizeof(*list), DRM_MEM_MAPS);
        if (!list) {
+               if (map->type == _DRM_REGISTERS)
+                       drm_ioremapfree(map->handle, map->size, dev);
                drm_free(map, sizeof(*map), DRM_MEM_MAPS);
                return -EINVAL;
        }
@@ -252,6 +254,8 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
                map->offset;
        ret = drm_map_handle(dev, &list->hash, user_token, 0);
        if (ret) {
+               if (map->type == _DRM_REGISTERS)
+                       drm_ioremapfree(map->handle, map->size, dev);
                drm_free(map, sizeof(*map), DRM_MEM_MAPS);
                drm_free(list, sizeof(*list), DRM_MEM_MAPS);
                mutex_unlock(&dev->struct_mutex);
@@ -883,6 +887,9 @@ int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request)
        request->count = entry->buf_count;
        request->size = size;
 
+       if (request->flags & _DRM_PCI_BUFFER_RO)
+               dma->flags = _DRM_DMA_USE_PCI_RO;
+
        atomic_dec(&dev->buf_alloc);
        return 0;
 
@@ -1467,9 +1474,10 @@ int drm_freebufs(struct inode *inode, struct file *filp,
  * \param arg pointer to a drm_buf_map structure.
  * \return zero on success or a negative number on failure.
  *
- * Maps the AGP or SG buffer region with do_mmap(), and copies information
- * about each buffer into user space. The PCI buffers are already mapped on the
- * addbufs_pci() call.
+ * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information
+ * about each buffer into user space. For PCI buffers, it calls do_mmap() with
+ * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls
+ * drm_mmap_dma().
  */
 int drm_mapbufs(struct inode *inode, struct file *filp,
                unsigned int cmd, unsigned long arg)