From: Matthew Dillon <dillon@apollo.backplane.com>
Date: Tue, 2 Mar 2010 00:07:25 +0000 (-0800)
Subject: kernel - VN - add missing disk_destroy() in module unload path
X-Git-Tag: v2.7.0~114^2~21
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/f31d07d7c51000e06197074816ce13f92489a135

kernel - VN - add missing disk_destroy() in module unload path

* The module unload was leaving the disk list corrupted.  Add a missing
  disk_destroy() call.

* Fixes certain bulk-build issues (apparently the bulk build tries to
  unload and reload the VN driver at some point for reasons unknown).
---

diff --git a/sys/dev/disk/vn/vn.c b/sys/dev/disk/vn/vn.c
index 014c1f8308..20ba9046b8 100644
--- a/sys/dev/disk/vn/vn.c
+++ b/sys/dev/disk/vn/vn.c
@@ -886,6 +886,7 @@ vn_modevent(module_t mod, int type, void *data)
 			if (vn->sc_flags & VNF_INITED)
 				vnclear(vn);
 			/* Cleanup all cdev_t's that refer to this unit */
+			disk_destroy(&vn->sc_disk);
 			while ((dev = vn->sc_devlist) != NULL) {
 				vn->sc_devlist = dev->si_drv2;
 				dev->si_drv1 = dev->si_drv2 = NULL;