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Drivers:hv: Fix a bug in vmbus_driver_unregister()

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The function vmbus_exists() was introduced recently to deal with cases where
the vmbus driver failed to initialize and yet other Hyper-V drivers attempted
to register with the vmbus bus driver. This patch introduced a bug where
vmbus_driver_unregister() would fail to unregister the driver. This patch
fixes the problem.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Fuzhou Chen <fuzhouch@microsoft.com>
Cc: Sasha Levin <levinsasha928@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan 2011-12-27 13:49:37 -08:00 committed by Greg Kroah-Hartman
parent b9d4e714a8
commit 8f257a142f
1 changed files with 1 additions and 4 deletions
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5
drivers/hv/vmbus_drv.c
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@ -627,10 +627,7 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver)
pr_info("unregistering driver %s\n", hv_driver->name);
if (!vmbus_exists())
return;
driver_unregister(&hv_driver->driver);
driver_unregister(&hv_driver->driver);
}
EXPORT_SYMBOL_GPL(vmbus_driver_unregister);