scsi: Always use MAXDESCSIZE when building drive description

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
diff --git a/src/hw/esp-scsi.c b/src/hw/esp-scsi.c
index 086a032..c98989c 100644
--- a/src/hw/esp-scsi.c
+++ b/src/hw/esp-scsi.c
@@ -168,7 +168,7 @@
     llun->lun = lun;
     llun->iobase = iobase;
 
-    char *name = znprintf(16, "esp %pP %d:%d", pci, target, lun);
+    char *name = znprintf(MAXDESCSIZE, "esp %pP %d:%d", pci, target, lun);
     int prio = bootprio_find_scsi_device(pci, target, lun);
     int ret = scsi_drive_setup(&llun->drive, name, prio);
     free(name);
diff --git a/src/hw/lsi-scsi.c b/src/hw/lsi-scsi.c
index 564c9f1..fd695fa 100644
--- a/src/hw/lsi-scsi.c
+++ b/src/hw/lsi-scsi.c
@@ -147,7 +147,7 @@
     llun->lun = lun;
     llun->iobase = iobase;
 
-    char *name = znprintf(16, "lsi %pP %d:%d", pci, target, lun);
+    char *name = znprintf(MAXDESCSIZE, "lsi %pP %d:%d", pci, target, lun);
     int prio = bootprio_find_scsi_device(pci, target, lun);
     int ret = scsi_drive_setup(&llun->drive, name, prio);
     free(name);
diff --git a/src/hw/megasas.c b/src/hw/megasas.c
index 2ee457b..7514164 100644
--- a/src/hw/megasas.c
+++ b/src/hw/megasas.c
@@ -225,7 +225,8 @@
         free(mlun);
         return -1;
     }
-    name = znprintf(36, "MegaRAID SAS (PCI %pP) LD %d:%d", pci, target, lun);
+    name = znprintf(MAXDESCSIZE, "MegaRAID SAS (PCI %pP) LD %d:%d"
+                    , pci, target, lun);
     prio = bootprio_find_scsi_device(pci, target, lun);
     ret = scsi_drive_setup(&mlun->drive, name, prio);
     free(name);
diff --git a/src/hw/pvscsi.c b/src/hw/pvscsi.c
index e1685b3..a9d118b 100644
--- a/src/hw/pvscsi.c
+++ b/src/hw/pvscsi.c
@@ -272,7 +272,7 @@
     plun->iobase = iobase;
     plun->ring_dsc = ring_dsc;
 
-    char *name = znprintf(16, "pvscsi %pP %d:%d", pci, target, lun);
+    char *name = znprintf(MAXDESCSIZE, "pvscsi %pP %d:%d", pci, target, lun);
     int prio = bootprio_find_scsi_device(pci, target, lun);
     int ret = scsi_drive_setup(&plun->drive, name, prio);
     free(name);