forked from luck/tmp_suning_uos_patched
Drivers:hv: Fix a bug in vmbus_driver_unregister()
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>
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@ -627,10 +627,7 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver)
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pr_info("unregistering driver %s\n", hv_driver->name);
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if (!vmbus_exists())
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return;
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driver_unregister(&hv_driver->driver);
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driver_unregister(&hv_driver->driver);
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}
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EXPORT_SYMBOL_GPL(vmbus_driver_unregister);
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