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qxl: check qxl_phys2virt return value

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Fixes: CID 1395986
Fixes: 979f7ef896
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181005134608.1251-1-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2018-10-05 15:46:08 +02:00
parent a0d098b794
commit 2f99f80c5d
1 changed files with 1 additions and 1 deletions
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hw/display/qxl.c
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@ -290,7 +290,7 @@ static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
}
cfg = qxl_phys2virt(qxl, qxl->guest_monitors_config, MEMSLOT_GROUP_GUEST);
if (cfg->count == 1) {
if (cfg != NULL && cfg->count == 1) {
qxl->guest_primary.resized = 1;
qxl->guest_head0_width = cfg->heads[0].width;
qxl->guest_head0_height = cfg->heads[0].height;