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xpp: make unregistration safer (idempotent)

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* Otherwise, a failed unit initialization (e.g: when init_card_?_?? fails)
   causes a panic

Signed-off-by: Oron Peled <oron.peled@xorcom.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10282 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Oron Peled 2011-10-26 19:06:32 +00:00 committed by Tzafrir Cohen
parent bfae9c07da
commit aab9e51f30
1 changed files with 10 additions and 8 deletions
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2
drivers/dahdi/xpp/xbus-core.c
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@ -939,6 +939,7 @@ static void xbus_unregister_dahdi_device(xbus_t *xbus)
xpd_t *xpd = xpd_of(xbus, i);
xpd_dahdi_preunregister(xpd);
}
if (xbus->ddev) {
dahdi_unregister_device(xbus->ddev);
XBUS_NOTICE(xbus, "%s: finished dahdi_unregister_device()\n", __func__);
kfree(xbus->ddev->devicetype);
@ -947,6 +948,7 @@ static void xbus_unregister_dahdi_device(xbus_t *xbus)
xbus->ddev->hardware_id = NULL;
dahdi_free_device(xbus->ddev);
xbus->ddev = NULL;
}
for(i = 0; i < MAX_XPDS; i++) {
xpd_t *xpd = xpd_of(xbus, i);
xpd_dahdi_postunregister(xpd);