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btrfs: remove unneeded NULL checks before kfree 

Kfree has taken the NULL pointer into account. So remove the check
before kfree.

The issue is detected with the help of Coccinelle.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
zhong jiang 2018-08-13 14:06:08 +08:00 committed by David Sterba
parent 4b6f8e9695
commit f8b00e0f06
1 changed files with 2 additions and 4 deletions
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6
fs/btrfs/free-space-cache.c
View File

@ -2110,8 +2110,7 @@ new_bitmap:
out:
if (info) {
if (info->bitmap)
kfree(info->bitmap);
kfree(info->bitmap);
kmem_cache_free(btrfs_free_space_cachep, info);
}
@ -3601,8 +3600,7 @@ again:
if (info)
kmem_cache_free(btrfs_free_space_cachep, info);
if (map)
kfree(map);
kfree(map);
return 0;
}