btrfs-progs: simplify empty stirngs check

We can do a strlen(str) == 0 in a simpler way.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/btrfs-convert.c b/btrfs-convert.c
index 5b9171ee..02e5cdba 100644
--- a/btrfs-convert.c
+++ b/btrfs-convert.c
@@ -1449,7 +1449,7 @@ static struct btrfs_root * link_subvol(struct btrfs_root *root,
 	int ret;
 
 	len = strlen(base);
-	if (len < 1 || len > BTRFS_NAME_LEN)
+	if (len == 0 || len > BTRFS_NAME_LEN)
 		return NULL;
 
 	path = btrfs_alloc_path();