Merge pull request #3437 from libgit2/cmn/plug-sm

submodule: plug a few leaks

src/submodule.c

@@ -170,7 +170,7 @@ static int name_from_path(git_buf *out, git_config *cfg, const char *path)
 
 		git_buf_clear(out);
 		git_buf_put(out, fdot + 1, ldot - fdot - 1);
-		return 0;
+		goto cleanup;
 	}
 
 	if (error == GIT_ITEROVER) {
@@ -178,6 +178,8 @@ static int name_from_path(git_buf *out, git_config *cfg, const char *path)
 		error = GIT_ENOTFOUND;
 	}
 
+cleanup:
+	git_config_iterator_free(iter);
 	return error;
 }
 
@@ -1701,7 +1703,7 @@ static int submodule_read_config(git_submodule *sm, git_config *cfg)
 			GITERR_CHECK_ALLOC(sm->path);
 		}
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if ((error = get_value(&value, cfg, &key, sm->name, "url")) == 0) {
@@ -1709,7 +1711,7 @@ static int submodule_read_config(git_submodule *sm, git_config *cfg)
 		sm->url = git__strdup(value);
 		GITERR_CHECK_ALLOC(sm->url);
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if ((error = get_value(&value, cfg, &key, sm->name, "branch")) == 0) {
@@ -1717,40 +1719,44 @@ static int submodule_read_config(git_submodule *sm, git_config *cfg)
 		sm->branch = git__strdup(value);
 		GITERR_CHECK_ALLOC(sm->branch);
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if ((error = get_value(&value, cfg, &key, sm->name, "update")) == 0) {
 		in_config = 1;
 		if ((error = git_submodule_parse_update(&sm->update, value)) < 0)
-			return error;
+			goto cleanup;
 		sm->update_default = sm->update;
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if ((error = get_value(&value, cfg, &key, sm->name, "fetchRecurseSubmodules")) == 0) {
 		in_config = 1;
 		if ((error = git_submodule_parse_recurse(&sm->fetch_recurse, value)) < 0)
-			return error;
+			goto cleanup;
 		sm->fetch_recurse_default = sm->fetch_recurse;
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if ((error = get_value(&value, cfg, &key, sm->name, "ignore")) == 0) {
 		in_config = 1;
 		if ((error = git_submodule_parse_ignore(&sm->ignore, value)) < 0)
-			return error;
+			goto cleanup;
 		sm->ignore_default = sm->ignore;
 	} else if (error != GIT_ENOTFOUND) {
-		return error;
+		goto cleanup;
 	}
 
 	if (in_config)
 		sm->flags |= GIT_SUBMODULE_STATUS_IN_CONFIG;
 
-	return 0;
+	error = 0;
+
+cleanup:
+	git_buf_free(&key);
+	return error;
 }
 
 static int submodule_load_each(const git_config_entry *entry, void *payload)
@@ -1784,8 +1790,10 @@ static int submodule_load_each(const git_config_entry *entry, void *payload)
 	 * already inserted, we've already loaded it, so we skip.
 	 */
 	pos = git_strmap_lookup_index(map, name.ptr);
-	if (git_strmap_valid_index(map, pos))
-		return 0;
+	if (git_strmap_valid_index(map, pos)) {
+		error = 0;
+		goto done;
+	}
 
 	if ((error = submodule_alloc(&sm, data->repo, name.ptr)) < 0)
 		goto done;