From: Dexuan Cui <decui@microsoft.com>
Date: Wed, 14 Jan 2015 09:55:10 +0000 (-0800)
Subject: hv: hv_fcopy: drop the obsolete message on transfer failure
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~85^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9b1652947c695d247b5e4603a16213ec55661ed;p=pandora-kernel.git

hv: hv_fcopy: drop the obsolete message on transfer failure

In the case the user-space daemon crashes, hangs or is killed, we
need to down the semaphore, otherwise, after the daemon starts next
time, the obsolete data in fcopy_transaction.message or
fcopy_transaction.fcopy_msg will be used immediately.

Cc: Jason Wang <jasowang@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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