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xkb: ignore floating slave devices when updating from master (#81885) 

Introduced in 45fb3a934d. When a device is
enabled, the master's locked state is pushed to the slave. If the device is
floating, no master exists and we triggered a NULL-pointer dereference
in XkbPushLockedStateToSlaves.

X.Org Bug 81885 <http://bugs.freedesktop.org/show_bug.cgi?id=81885>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Peter Hutterer 2014-08-04 10:47:03 +10:00 committed by Keith Packard
parent 4599a4492c
commit 1e30fc1b99
1 changed files with 1 additions and 1 deletions
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dix/devices.c
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@ -416,7 +416,7 @@ EnableDevice(DeviceIntPtr dev, BOOL sendevent)
XISendDeviceHierarchyEvent(flags); XISendDeviceHierarchyEvent(flags);
} }
if (!IsMaster(dev)) if (!IsMaster(dev) && !IsFloating(dev))
XkbPushLockedStateToSlaves(GetMaster(dev, MASTER_KEYBOARD), 0, 0); XkbPushLockedStateToSlaves(GetMaster(dev, MASTER_KEYBOARD), 0, 0);
RecalculateMasterButtons(dev); RecalculateMasterButtons(dev);