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Drivers: hv: util: Backup: Fix a rescind processing issue
authorK. Y. Srinivasan <kys@microsoft.com>
Fri, 23 Dec 2016 00:54:03 +0000 (16:54 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 12 Mar 2017 05:37:29 +0000 (06:37 +0100)
commit d77044d142e960f7b5f814a91ecb8bcf86aa552c upstream.

VSS may use a char device to support the communication between
the user level daemon and the driver. When the VSS channel is rescinded
we need to make sure that the char device is fully cleaned up before
we can process a new VSS offer from the host. Implement this logic.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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