From 9561d479314f16b41563f73511fb61d91de4642f Mon Sep 17 00:00:00 2001
From: Tomas Hozza <thozza@redhat.com>
Date: Thu, 27 Jun 2013 13:52:49 +0200
Subject: [PATCH] tools: hv: Check return value of poll call

Check return value of poll call and if it fails print error to the
system log. If errno is EINVAL then exit with non-zero value otherwise
continue the while loop and call poll again.

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