diff mbox

[PULL,2/2] qxl: lock current_async update in qxl_soft_reset

Message ID 1456816649-4713-3-git-send-email-kraxel@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Gerd Hoffmann March 1, 2016, 7:17 a.m. UTC 
This should fix a defect report from Coverity.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/display/qxl.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox

Patch

diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index a423dee..919dc5c 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -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);