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qxl: keep going if reaching guest bug on empty area

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Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20141015-1' into staging

qxl: keep going if reaching guest bug on empty area

# gpg: Signature made Wed 15 Oct 2014 11:45:37 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/spice/tags/pull-spice-20141015-1:
  qxl: keep going if reaching guest bug on empty area

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2014-10-22 14:49:37 +01:00
parent 4b4ce6c2b8 9e5a25f1c2
commit 19f3772995
1 changed files with 5 additions and 0 deletions
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5
hw/display/qxl.c
View file

@ -1591,6 +1591,11 @@ async_common:
qxl_set_guest_bug(d,
"QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
update.left, update.top, update.right, update.bottom);
if (update.left == update.right || update.top == update.bottom) {
/* old drivers may provide empty area, keep going */
qxl_clear_guest_bug(d);
goto cancel_async;
}
break;
}
if (async == QXL_ASYNC) {