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-rw-r--r--hw/display/virtio-gpu.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 91345bd..64a60f2 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -508,6 +508,14 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id,
ss.r.width, ss.r.height, ss.r.x, ss.r.y);
+ if (ss.scanout_id >= VIRTIO_GPU_MAX_SCANOUT ||
+ ss.scanout_id >= g->conf.max_outputs) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
+ __func__, ss.scanout_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
+ return;
+ }
+
g->enable = 1;
if (ss.resource_id == 0) {
scanout = &g->scanout[ss.scanout_id];
@@ -517,8 +525,7 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
res->scanout_bitmask &= ~(1 << ss.scanout_id);
}
}
- if (ss.scanout_id == 0 ||
- ss.scanout_id >= g->conf.max_outputs) {
+ if (ss.scanout_id == 0) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: illegal scanout id specified %d",
__func__, ss.scanout_id);
@@ -533,14 +540,6 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
}
/* create a surface for this scanout */
- if (ss.scanout_id >= VIRTIO_GPU_MAX_SCANOUT ||
- ss.scanout_id >= g->conf.max_outputs) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
- __func__, ss.scanout_id);
- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
- return;
- }
-
res = virtio_gpu_find_resource(g, ss.resource_id);
if (!res) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",