lightningd: initialize error pointer in connect_activate_subd and handle_splice_abort

Fixes #9442

Changelog-None

Author: Andezion

lightningd/channel_control.c

@@ -331,7 +331,7 @@ static void handle_splice_abort(struct lightningd *ld,
 	struct bitcoin_outpoint *outpoint;
 	struct channel_inflight *inflight;
 	char *reason;
-	const u8 *error;
+	const u8 *error = NULL;
 	struct peer_fd *pfd;
 	int other_fd;
 

lightningd/peer_control.c

@@ -1395,7 +1395,7 @@ static bool ignore_idle_channel(const struct lightningd *ld,
 /* Talk to connectd about an active channel */
 static void connect_activate_subd(struct lightningd *ld, struct channel *channel)
 {
-	const u8 *error;
+	const u8 *error = NULL;
 	struct peer_fd *pfd;
 	int other_fd;