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qxl: reset update_surface 

update init_qxl_ram to reset update_surface to 0. This fixes one case
of breakage when installing an old driver in a vm that had a new driver
installed. The newer driver would know about surface creation and would
change update_surface to !=0, then a reset would happen, all surfaces
are destroyed, then the old driver is initialized and issues an
UPDATE_AREA, and spice server aborts on invalid surface.

RHBZ: 690427

Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Alon Levy 2011-10-23 17:03:52 +02:00 committed by Gerd Hoffmann
parent 30f6da6656
commit 9f0f352d85
1 changed files with 1 additions and 0 deletions
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hw/qxl.c
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@ -331,6 +331,7 @@ static void init_qxl_ram(PCIQXLDevice *d)
d->ram->magic = cpu_to_le32(QXL_RAM_MAGIC);
d->ram->int_pending = cpu_to_le32(0);
d->ram->int_mask = cpu_to_le32(0);
d->ram->update_surface = 0;
SPICE_RING_INIT(&d->ram->cmd_ring);
SPICE_RING_INIT(&d->ram->cursor_ring);
SPICE_RING_INIT(&d->ram->release_ring);