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Deregister the dev_clone event handler when unloading the module. Bad

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things might happen otherwise.

Noticed by:	Michael Reifenberger <root@nihil.reifenberger.com>
This commit is contained in:
Joerg Wunsch 2003-02-11 21:12:43 +00:00
parent 00ad14c702
commit 1e35598c3a
1 changed files with 5 additions and 1 deletions
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6
sys/dev/vinum/vinum.c
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@ -73,6 +73,8 @@ struct _vinum_conf vinum_conf; /* configuration information */
dev_t vinum_daemon_dev;
dev_t vinum_super_dev;
static eventhandler_tag dev_clone_tag;
/*
* Called by main() during pseudo-device attachment. All we need
* to do is allocate enough space for devices to be configured later, and
@ -142,7 +144,7 @@ vinumattach(void *dummy)
vinum_conf.subdisks_allocated = INITIAL_SUBDISKS; /* number of sd slots allocated */
vinum_conf.subdisks_used = 0; /* and number in use */
EVENTHANDLER_REGISTER(dev_clone, vinum_clone, 0, 1000);
dev_clone_tag = EVENTHANDLER_REGISTER(dev_clone, vinum_clone, 0, 1000);
/*
* See if the loader has passed us any of the
@ -240,6 +242,8 @@ free_vinum(int cleardrive)
int i;
int drives_allocated = vinum_conf.drives_allocated;
EVENTHANDLER_DEREGISTER(dev_clone, dev_clone_tag);
if (DRIVE != NULL) {
if (cleardrive) { /* remove the vinum config */
for (i = 0; i < drives_allocated; i++)