btrfs-progs: fix memory leak in btrfs-map-logical main()

In btrfs-map-logical main(), strdup() allocates memory to output_file,
but that memory is not freed.
So add missing free() calls before return.

Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/btrfs-map-logical.c b/btrfs-map-logical.c
index a88e56e3..d9fa6b29 100644
--- a/btrfs-map-logical.c
+++ b/btrfs-map-logical.c
@@ -262,6 +262,7 @@ int main(int ac, char **av)
 	root = open_ctree(dev, 0, 0);
 	if (!root) {
 		fprintf(stderr, "Open ctree failed\n");
+		free(output_file);
 		exit(1);
 	}
 
@@ -354,6 +355,7 @@ out_close_fd:
 	if (output_file && out_fd != 1)
 		close(out_fd);
 close:
+	free(output_file);
 	close_ctree(root);
 	if (ret < 0)
 		ret = 1;