Vitaly Kuznetsov 096c605feb Drivers: hv: vmbus: unregister panic notifier on module unload
Commit 96c1d0581d00f7abe033350edb021a9d947d8d81 ("Drivers: hv: vmbus: Add
support for VMBus panic notifier handler") introduced
atomic_notifier_chain_register() call on module load. We also need to call
atomic_notifier_chain_unregister() on module unload as otherwise the following
crash is observed when we bring hv_vmbus back:

[   39.788877] BUG: unable to handle kernel paging request at ffffffffa00078a8
[   39.788877] IP: [<ffffffff8109d63f>] notifier_call_chain+0x3f/0x80
...
[   39.788877] Call Trace:
[   39.788877]  [<ffffffff8109de7d>] __atomic_notifier_call_chain+0x5d/0x90
...
[   39.788877]  [<ffffffff8109d788>] ? atomic_notifier_chain_register+0x38/0x70
[   39.788877]  [<ffffffff8109d767>] ? atomic_notifier_chain_register+0x17/0x70
[   39.788877]  [<ffffffffa002814f>] hv_acpi_init+0x14f/0x1000 [hv_vmbus]
[   39.788877]  [<ffffffff81002144>] do_one_initcall+0xd4/0x210

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24 12:18:23 -07:00
..
2015-04-26 13:36:02 -07:00
2015-05-11 10:33:31 -07:00
2015-05-05 08:42:06 -07:00
2015-04-22 09:18:17 -07:00
2015-04-26 13:36:02 -07:00
2015-05-18 10:01:54 -07:00
2015-05-12 23:22:03 -04:00
2015-04-24 08:46:18 -07:00
2015-04-16 14:01:03 -05:00
2015-04-22 09:04:39 -07:00
2015-04-13 17:07:21 -07:00
2015-04-23 16:55:50 +02:00
2015-04-27 10:10:19 -07:00
2015-05-24 11:55:15 -07:00
2015-05-16 21:10:05 -07:00
2015-05-14 12:43:36 -07:00
2015-04-20 15:16:25 -07:00