dix: Allocate the space for the DCCE when the last SD is removed.

This still doesn't fix reset the MD's classes (a TODO that's been here for
ages), but at least we don't segfault anymore when detaching the last SD.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2008-12-16 14:19:12 +10:00
parent 689be0cb4b
commit 08a3d6928c

View File

@ -2569,21 +2569,28 @@ AttachDevice(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr master)
if (!it) /* no dev is paired with old master */
{
/* XXX: reset to defaults */
EventList event = { NULL, 0};
EventListPtr event = NULL;
char* classbuf;
int namelen = 0; /* dummy */
int len = sizeof(xEvent);
deviceClassesChangedEvent *dcce;
event = InitEventList(1);
SizeDeviceInfo(oldmaster, &namelen, &len);
SetMinimumEventSize(event, 1, len);
/* Send event to clients */
CreateClassesChangedEvent(&event, oldmaster, oldmaster);
dcce = (deviceClassesChangedEvent*)event.event;
CreateClassesChangedEvent(event, oldmaster, oldmaster);
dcce = (deviceClassesChangedEvent*)event->event;
dcce->deviceid = oldmaster->id;
dcce->num_classes = 0;
classbuf = (char*)&event.event[1];
dcce->length = (len - sizeof(xEvent))/4;
classbuf = (char*)&event->event[1];
CopySwapClasses(NullClient, oldmaster,
&dcce->num_classes, &classbuf);
SendEventToAllWindows(oldmaster, XI_DeviceClassesChangedMask,
event.event, 1);
xfree(event.event);
event->event, 1);
FreeEventList(event, 1);
}
}