target: Rename core_tpg_{pre,post}_addlun for clarity

"pre" is really an allocation function. The only time it isn't called is
for virtual_lun0, which is statically allocated. Renaming that to "alloc"
lets the other function not need to be "post", and just be called
core_tpg_add_lun.

(nab: fix minor applying fuzz in core_tpg_setup_virtual_lun0)

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 4b6b787..dbd78a1 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1117,11 +1117,11 @@
 	struct se_lun *lun;
 	int rc;
 
-	lun = core_tpg_pre_addlun(tpg, unpacked_lun);
+	lun = core_tpg_alloc_lun(tpg, unpacked_lun);
 	if (IS_ERR(lun))
 		return lun;
 
-	rc = core_tpg_post_addlun(tpg, lun,
+	rc = core_tpg_add_lun(tpg, lun,
 				TRANSPORT_LUNFLAGS_READ_WRITE, dev);
 	if (rc < 0)
 		return ERR_PTR(rc);