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

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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
1 changed files with 13 additions and 6 deletions
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19
dix/devices.c
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@@ -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);
}
}