From: Keir Fraser <keir.fraser@citrix.com>
Date: Tue, 9 Mar 2010 12:34:39 +0000 (+0000)
Subject: stdvga: avoid bogus warning message
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~12524
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=a0c1a380cba507a16ced03f01a3d927fd4ac6229;p=xen.git

stdvga: avoid bogus warning message

Prevents stdvga to print the 'unsupported mmio request type'
warning when the actual request type is 'IOREQ_TYPE_COPY'.
This avoids confusion.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
---

diff --git a/xen/arch/x86/hvm/stdvga.c b/xen/arch/x86/hvm/stdvga.c
index b2faaa0eca..ff9b3f68dc 100644
--- a/xen/arch/x86/hvm/stdvga.c
+++ b/xen/arch/x86/hvm/stdvga.c
@@ -561,8 +561,9 @@ static int stdvga_intercept_mmio(ioreq_t *p)
         {
         case IOREQ_TYPE_COPY:
             buf = mmio_move(s, p);
-            if ( buf )
-                break;
+            if ( !buf )
+                s->cache = 0;
+            break;
         default:
             gdprintk(XENLOG_WARNING, "unsupported mmio request type:%d "
                      "addr:0x%04x data:0x%04x size:%d count:%d state:%d "