diff --git a/sys/geom/raid/md_intel.c b/sys/geom/raid/md_intel.c
index 3ec904c9938..9d6e4444878 100644
--- a/sys/geom/raid/md_intel.c
+++ b/sys/geom/raid/md_intel.c
@@ -1487,7 +1487,6 @@ g_raid_md_taste_intel(struct g_raid_md_object *md, struct g_class *mp,
 
 	/* Read metadata from device. */
 	meta = NULL;
-	vendor = 0xffff;
 	disk_pos = 0;
 	g_topology_unlock();
 	error = g_raid_md_get_label(cp, serial, sizeof(serial));
@@ -1496,7 +1495,8 @@ g_raid_md_taste_intel(struct g_raid_md_object *md, struct g_class *mp,
 		    pp->name, error);
 		goto fail2;
 	}
-	len = 2;
+	vendor = 0xffff;
+	len = sizeof(vendor);
 	if (pp->geom->rank == 1)
 		g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
 	meta = intel_meta_read(cp);
diff --git a/sys/geom/raid/md_jmicron.c b/sys/geom/raid/md_jmicron.c
index d4748e068b6..9bd64d22da9 100644
--- a/sys/geom/raid/md_jmicron.c
+++ b/sys/geom/raid/md_jmicron.c
@@ -836,9 +836,9 @@ g_raid_md_taste_jmicron(struct g_raid_md_object *md, struct g_class *mp,
 
 	/* Read metadata from device. */
 	meta = NULL;
-	vendor = 0xffff;
 	g_topology_unlock();
-	len = 2;
+	vendor = 0xffff;
+	len = sizeof(vendor);
 	if (pp->geom->rank == 1)
 		g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
 	meta = jmicron_meta_read(cp);
diff --git a/sys/geom/raid/md_nvidia.c b/sys/geom/raid/md_nvidia.c
index 9a8397c9d0e..1c4fe5ee034 100644
--- a/sys/geom/raid/md_nvidia.c
+++ b/sys/geom/raid/md_nvidia.c
@@ -841,9 +841,9 @@ g_raid_md_taste_nvidia(struct g_raid_md_object *md, struct g_class *mp,
 
 	/* Read metadata from device. */
 	meta = NULL;
-	vendor = 0xffff;
 	g_topology_unlock();
-	len = 2;
+	vendor = 0xffff;
+	len = sizeof(vendor);
 	if (pp->geom->rank == 1)
 		g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
 	meta = nvidia_meta_read(cp);
diff --git a/sys/geom/raid/md_promise.c b/sys/geom/raid/md_promise.c
index 73a2520be12..2d161e70136 100644
--- a/sys/geom/raid/md_promise.c
+++ b/sys/geom/raid/md_promise.c
@@ -1105,9 +1105,9 @@ g_raid_md_taste_promise(struct g_raid_md_object *md, struct g_class *mp,
 
 	/* Read metadata from device. */
 	meta = NULL;
-	vendor = 0xffff;
 	g_topology_unlock();
-	len = 2;
+	vendor = 0xffff;
+	len = sizeof(vendor);
 	if (pp->geom->rank == 1)
 		g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
 	subdisks = promise_meta_read(cp, metaarr);
diff --git a/sys/geom/raid/md_sii.c b/sys/geom/raid/md_sii.c
index 8a982a6dadb..83703459541 100644
--- a/sys/geom/raid/md_sii.c
+++ b/sys/geom/raid/md_sii.c
@@ -923,9 +923,9 @@ g_raid_md_taste_sii(struct g_raid_md_object *md, struct g_class *mp,
 
 	/* Read metadata from device. */
 	meta = NULL;
-	vendor = 0xffff;
 	g_topology_unlock();
-	len = 2;
+	vendor = 0xffff;
+	len = sizeof(vendor);
 	if (pp->geom->rank == 1)
 		g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor);
 	meta = sii_meta_read(cp);