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btrfs: zoned: use kmemdup() to replace kmalloc + memcpy 

Fix memdup.cocci warning:
fs/btrfs/zoned.c:1198:23-30: WARNING opportunity for kmemdup

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Kai Song <songkai01@inspur.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Kai Song 2021-10-03 16:06:56 +08:00 committed by David Sterba
parent 0cf9b244e7
commit 64259baa39
1 changed files with 1 additions and 3 deletions
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4
fs/btrfs/zoned.c
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@ -1195,14 +1195,12 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
map = em->map_lookup;
cache->physical_map = kmalloc(map_lookup_size(map->num_stripes), GFP_NOFS);
cache->physical_map = kmemdup(map, map_lookup_size(map->num_stripes), GFP_NOFS);
if (!cache->physical_map) {
ret = -ENOMEM;
goto out;
}
memcpy(cache->physical_map, map, map_lookup_size(map->num_stripes));
alloc_offsets = kcalloc(map->num_stripes, sizeof(*alloc_offsets), GFP_NOFS);
if (!alloc_offsets) {
ret = -ENOMEM;