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| author | Chengguang Xu <cgxu519@gmx.com> | 2018-06-27 12:16:35 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-08-06 13:12:40 +0200 |
| commit | 7e35eab958e30d15743b1f9928d15b559a6e432d (patch) | |
| tree | 30c1696236fb3b1707a026bcdae8213633f90bed | |
| parent | ab3629ed86ec43e7d95cf087d0b5a9d403fcd822 (diff) | |
| download | linux-7e35eab958e30d15743b1f9928d15b559a6e432d.tar.gz linux-7e35eab958e30d15743b1f9928d15b559a6e432d.tar.bz2 linux-7e35eab958e30d15743b1f9928d15b559a6e432d.zip | |
btrfs: replace empty string with NULL when getting attribute length in btrfs_get_acl
In btrfs_get_acl() the first call of btr_getxattr() is for getting the
length of attribute, the value buffer is never used in this case. So
it's better to replace empty string with NULL.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/acl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 60f83a3bd77c..83fdd80c51c6 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -33,7 +33,7 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type) return ERR_PTR(-EINVAL); } - size = btrfs_getxattr(inode, name, "", 0); + size = btrfs_getxattr(inode, name, NULL, 0); if (size > 0) { value = kzalloc(size, GFP_KERNEL); if (!value) |