Commit e08870c8 authored by Thomas Hellstrom's avatar Thomas Hellstrom Committed by Dave Airlie
Browse files

drm: allow multiple addMaps with the same 32-bit map offsset.



Reported on -mm kernels.
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 214ff13d
......@@ -77,14 +77,16 @@ static int drm_map_handle(drm_device_t *dev, drm_hash_item_t *hash,
#error Unsupported long size. Neither 64 nor 32 bits.
#endif
if (use_hashed_handle) {
return drm_ht_just_insert_please(&dev->map_hash, hash,
user_token, 32 - PAGE_SHIFT - 3,
PAGE_SHIFT, DRM_MAP_HASH_OFFSET);
} else {
if (!use_hashed_handle) {
int ret;
hash->key = user_token;
return drm_ht_insert_item(&dev->map_hash, hash);
ret = drm_ht_insert_item(&dev->map_hash, hash);
if (ret != -EINVAL)
return ret;
}
return drm_ht_just_insert_please(&dev->map_hash, hash,
user_token, 32 - PAGE_SHIFT - 3,
PAGE_SHIFT, DRM_MAP_HASH_OFFSET);
}
/**
......
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