coverity: fix possible NULL dereference

The call to dm_config_destroy can derefence result->mem
while result is still NULL:

struct dm_config_tree *get_cachepolicy_params(struct cmd_context *cmd)
{
	...
	int ok = 0;
	...
	if (!(result = dm_config_flatten(current)))
		goto_out;
	...
	ok = 1;
out:
	 if (!ok) {
		dm_config_destroy(result)
		...
	}
	...
}

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/toollib.c b/tools/toollib.c
index ddf2dcffc..71eb9a879 100644
--- a/tools/toollib.c
+++ b/tools/toollib.c
@@ -1175,7 +1175,7 @@ struct dm_config_tree *get_cachepolicy_params(struct cmd_context *cmd)
 	ok = 1;
 
 out:
-	if (!ok) {
+	if (!ok && result) {
 		dm_config_destroy(result);
 		result = NULL;
 	}