diff options
Diffstat (limited to 'drivers/char/drm/drm_bufs.c')
| -rw-r--r-- | drivers/char/drm/drm_bufs.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c index 923174c54a1..c115b39b851 100644 --- a/drivers/char/drm/drm_bufs.c +++ b/drivers/char/drm/drm_bufs.c @@ -177,8 +177,14 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset, MTRR_TYPE_WRCOMB, 1); } } - if (map->type == _DRM_REGISTERS) + if (map->type == _DRM_REGISTERS) { map->handle = ioremap(map->offset, map->size); + if (!map->handle) { + drm_free(map, sizeof(*map), DRM_MEM_MAPS); + return -ENOMEM; + } + } + break; case _DRM_SHM: list = drm_find_matching_map(dev, map); @@ -479,11 +485,6 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp, return -EINVAL; } - if (!map) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - /* Register and framebuffer maps are permanent */ if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) { mutex_unlock(&dev->struct_mutex); |