commit bb787f0904b277323c9eed7a015bad19b89caad3
from: Stefan Sperling <stsp@stsp.name>
date: Thu Jul 25 12:59:43 2019 UTC

fix a double-free in 'got update' error path

commit - 426ebf2e17bcc7dd65efb6db32f200729b1f57c4
commit + bb787f0904b277323c9eed7a015bad19b89caad3
blob - cb742545ed221b63c6fe77744b828547386da0ad
blob + 809cd0f8e06311739a9dcc37dbc9064641b509b9
--- got/got.c
+++ got/got.c
@@ -1129,6 +1129,7 @@ cmd_update(int argc, char *argv[])
 	} else {
 		error = resolve_commit_arg(&commit_id, commit_id_str, repo);
 		free(commit_id_str);
+		commit_id_str = NULL;
 		if (error)
 			goto done;
 		error = got_object_id_str(&commit_id_str, commit_id);