btrfs-progs: remove NULL-ptr judge before free for btrfs-progs

free(3) already checks the pointer for NULL, no need to do it
on your own. This patch make the change globally.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/mkfs.c b/mkfs.c
index 1350ee1d..80977ad0 100644
--- a/mkfs.c
+++ b/mkfs.c
@@ -721,8 +721,7 @@ again:
 		goto again;
 
 end:
-	if (eb)
-		free(eb);
+	free(eb);
 	close(fd);
 	return ret;
 }