[PATCH 4.9 148/177] btrfs: tests: Fix a memory leak in error handling path in run_test()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>


[ Upstream commit 9ca2e97fa3c3216200afe35a3b111ec51cc796d2 ]

If 'btrfs_alloc_path()' fails, we must free the resources already
allocated, as done in the other error handling paths in this function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Reviewed-by: Qu Wenruo <quwenruo.btrfs@xxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/btrfs/tests/free-space-tree-tests.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/btrfs/tests/free-space-tree-tests.c
+++ b/fs/btrfs/tests/free-space-tree-tests.c
@@ -501,7 +501,8 @@ static int run_test(test_func_t test_fun
 	path = btrfs_alloc_path();
 	if (!path) {
 		test_msg("Couldn't allocate path\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out;
 	}
 
 	ret = add_block_group_free_space(&trans, root->fs_info, cache);