[Xen-changelog] [xen-unstable] x86/HVM: add missing assert to stdvga's mmio_move()

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxx>
# Date 1354884357 -3600
# Node ID 18b25321cea6142391921dbad56765eb32cd4f90
# Parent  b62bd62b26836fafe19cf41fec194bcf33e2ead6
x86/HVM: add missing assert to stdvga's mmio_move()

... to match the IOREQ_READ path.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Keir Fraser <keir@xxxxxxx>
---


diff -r b62bd62b2683 -r 18b25321cea6 xen/arch/x86/hvm/stdvga.c
--- a/xen/arch/x86/hvm/stdvga.c Fri Dec 07 13:44:32 2012 +0100
+++ b/xen/arch/x86/hvm/stdvga.c Fri Dec 07 13:45:57 2012 +0100
@@ -519,6 +519,7 @@ static int mmio_move(struct hvm_hw_stdvg
                             put_page(dp);
                         return 0;
                     }
+                    ASSERT(!dp);
                     tmp = stdvga_mem_read(data, p->size);
                 }
                 stdvga_mem_write(addr, tmp, p->size);

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