From f4ed0045735d88aa681b4933072ff35a890a86a0 Mon Sep 17 00:00:00 2001
From: Toomas Soome <tsoome@FreeBSD.org>
Date: Sun, 3 Nov 2019 13:03:47 +0000
Subject: [PATCH] loader: should check malloc in zfs_dev_open

malloc can return NULL.
---
 stand/libsa/zfs/zfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/stand/libsa/zfs/zfs.c b/stand/libsa/zfs/zfs.c
index 6a8d523fb798..987ed4666ad3 100644
--- a/stand/libsa/zfs/zfs.c
+++ b/stand/libsa/zfs/zfs.c
@@ -669,6 +669,8 @@ zfs_dev_open(struct open_file *f, ...)
 	if (!spa)
 		return (ENXIO);
 	mount = malloc(sizeof(*mount));
+	if (mount == NULL)
+		return (ENOMEM);
 	rv = zfs_mount(spa, dev->root_guid, mount);
 	if (rv != 0) {
 		free(mount);