diff --git a/sway/config/seat.c b/sway/config/seat.c
index 4c9e8d0d..113139e8 100644
--- a/sway/config/seat.c
+++ b/sway/config/seat.c
@@ -14,6 +14,7 @@ struct seat_config *new_seat_config(const char* name) {
 	sway_log(L_DEBUG, "new_seat_config(%s)", name);
 	seat->name = strdup(name);
 	if (!sway_assert(seat->name, "could not allocate name for seat")) {
+		free(seat);
 		return NULL;
 	}
 
@@ -21,6 +22,8 @@ struct seat_config *new_seat_config(const char* name) {
 	seat->attachments = create_list();
 	if (!sway_assert(seat->attachments,
 				"could not allocate seat attachments list")) {
+		free(seat->name);
+		free(seat);
 		return NULL;
 	}
 
diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
index b20b7b7e..4459c43b 100644
--- a/sway/input/input-manager.c
+++ b/sway/input/input-manager.c
@@ -119,10 +119,11 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
 
 	bool added = false;
 	wl_list_for_each(seat, &input->seats, link) {
-		if (seat->config &&
-				(seat_config_get_attachment(seat->config,
-											input_device->identifier) ||
-				seat_config_get_attachment(seat->config, "*"))) {
+		bool has_attachment = seat->config &&
+			(seat_config_get_attachment(seat->config, input_device->identifier) ||
+			 seat_config_get_attachment(seat->config, "*"));
+
+		if (has_attachment) {
 			sway_seat_add_device(seat, input_device);
 			added = true;
 		}
diff --git a/sway/input/seat.c b/sway/input/seat.c
index df1427fa..fe90565a 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -30,6 +30,7 @@ struct sway_seat *sway_seat_create(struct sway_input_manager *input,
 
 	seat->wlr_seat = wlr_seat_create(input->server->wl_display, seat_name);
 	if (!sway_assert(seat->wlr_seat, "could not allocate seat")) {
+		free(seat);
 		return NULL;
 	}