From 175cad266774d09c57a62c65baa6b4e1edafdf3a Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Mon, 12 Dec 2011 09:29:18 -0800
Subject: Drivers: hv: Get rid of an unnecessary check in hv.c

In preparation for eventually supporting kexec in Linux VMs on Hyper-V,
get rid of an unnecessary check in hv_init().

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index f8a77d0..12aa97f 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -164,11 +164,6 @@ int hv_init(void)
 
 	max_leaf = query_hypervisor_info();
 
-	rdmsrl(HV_X64_MSR_GUEST_OS_ID, hv_context.guestid);
-
-	if (hv_context.guestid != 0)
-		goto cleanup;
-
 	/* Write our OS info */
 	wrmsrl(HV_X64_MSR_GUEST_OS_ID, HV_LINUX_GUEST_ID);
 	hv_context.guestid = HV_LINUX_GUEST_ID;
-- 
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