From 450e503cc7a06ae925ab19b9c1da4b330e0d8c19 Mon Sep 17 00:00:00 2001
From: kn <kn@openbsd.org>
Date: Sat, 4 May 2024 16:40:38 +0000
Subject: [PATCH] dma_free(9) just once in error case

buf is free'd and NULL, don't do it again to avoid a panic.

OK krw
---
 sys/scsi/sd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/scsi/sd.c b/sys/scsi/sd.c
index 92d2f5e10b0..fe1aa9fc7a7 100644
--- a/sys/scsi/sd.c
+++ b/sys/scsi/sd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sd.c,v 1.335 2023/11/10 17:43:39 krw Exp $	*/
+/*	$OpenBSD: sd.c,v 1.336 2024/05/04 16:40:38 kn Exp $	*/
 /*	$NetBSD: sd.c,v 1.111 1997/04/02 02:29:41 mycroft Exp $	*/
 
 /*-
@@ -1771,7 +1771,7 @@ validate:
 	}
 
 	if (dp.disksize == 0)
-		goto die;
+		return -1;
 
 	/*
 	 * Restrict secsize values to powers of two between 512 and 64k.
-- 
2.20.1