Xi: when deleting all properties, reset property handler to NULL.

Trying to unregister property handlers during the device closure process
leads to invalid memory accesses.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 482185703..ecb326ee3 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -630,6 +630,8 @@ XIDeleteAllDeviceProperties (DeviceIntPtr device)
         xfree(curr_handler);
         curr_handler = next_handler;
     }
+
+    device->properties.handlers = NULL;
 }