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qxl: lock current_async update in qxl_soft_reset 

This should fix a defect report from Coverity.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gerd Hoffmann 2015-10-20 09:57:30 +02:00
parent d2ba7ecb34
commit 05fa1c742f
1 changed files with 2 additions and 0 deletions
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2
hw/display/qxl.c
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@ -1156,7 +1156,9 @@ static void qxl_soft_reset(PCIQXLDevice *d)
trace_qxl_soft_reset(d->id);
qxl_check_state(d);
qxl_clear_guest_bug(d);
qemu_mutex_lock(&d->async_lock);
d->current_async = QXL_UNDEFINED_IO;
qemu_mutex_unlock(&d->async_lock);
if (d->id == 0) {
qxl_enter_vga_mode(d);