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 <[email protected]> Reviewed-by: Nikolay Borisov <[email protected]> --- v4: - Split patch to series. v3: - Fix some toher bad practices. - Add more information to commit log. v2: - Avoid errno overriding instead of print error message in error case. - Chagne commit log for better understanding. fs/btrfs/acl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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) -- 2.17.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
