From 6a86e80a30644547f54e0671ba6644940a9ecb4c Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 23 May 2023 20:02:25 +0930
Subject: [PATCH] dualopend: fix minor memleak report.

It would be freed eventually, but this is clearer.

```
 MEMLEAK: 0x56402bbfb6a8
   label=openingd/dualopend.c:362:char[]
   backtrace:
     ccan/ccan/tal/tal.c:477 (tal_alloc_)
     ccan/ccan/tal/tal.c:506 (tal_alloc_arr_)
     ccan/ccan/tal/tal.c:850 (tal_dup_)
     openingd/dualopend.c:362 (open_abort)
     openingd/dualopend.c:3411 (rbf_wrap_up)
     openingd/dualopend.c:3787 (rbf_remote_start)
     openingd/dualopend.c:4135 (handle_peer_in)
     openingd/dualopend.c:4421 (main)
   parents:
     openingd/dualopend.c:349:char[]
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 openingd/dualopend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openingd/dualopend.c b/openingd/dualopend.c
index c4486e5fc..e7dd54266 100644
--- a/openingd/dualopend.c
+++ b/openingd/dualopend.c
@@ -359,7 +359,7 @@ static void open_abort(struct state *state,
 	 * status. */
 	peer_billboard(true, errmsg);
 	msg = towire_tx_abort(NULL, &state->channel_id,
-			      (u8 *)tal_dup_arr(errmsg, char, errmsg,
+			      (u8 *)tal_dup_arr(tmpctx, char, errmsg,
 					  strlen(errmsg), 0));
 	peer_write(state->pps, take(msg));