[PATCH] Xi: reset the unused classes pointer after copying

[Peter Hutterer]

After copying the unused_classes into the device, reset the original
pointer. Otherwise we have two pointers pointing to the same field and both
get freed on device removal.

Some classes already have this behaviour since 51c8fd69.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 Xi/exevents.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Xi/exevents.c b/Xi/exevents.c
index e990aeb..e19e207 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -223,6 +223,7 @@ DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to)
         {
             classes = to->unused_classes;
             to->intfeed = classes->intfeed;
+            classes->intfeed = NULL;
         }
 
         i = &to->intfeed;
@@ -258,6 +259,7 @@ DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to)
         {
             classes = to->unused_classes;
             to->stringfeed = classes->stringfeed;
+            classes->stringfeed = NULL;
         }
 
         s = &to->stringfeed;
@@ -293,6 +295,7 @@ DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to)
         {
             classes = to->unused_classes;
             to->bell = classes->bell;
+            classes->bell = NULL;
         }
 
         b = &to->bell;
@@ -329,6 +332,7 @@ DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to)
         {
             classes = to->unused_classes;
             to->leds = classes->leds;
+            classes->leds = NULL;
         }
 
         l = &to->leds;
@@ -379,6 +383,7 @@ DeepCopyKeyboardClasses(DeviceIntPtr from, DeviceIntPtr to)
             to->kbdfeed = classes->kbdfeed;
             if (!to->kbdfeed)
                 InitKeyboardDeviceStruct(to, NULL, NULL, NULL);
+            classes->kbdfeed = NULL;
         }
 
         k = &to->kbdfeed;
@@ -506,6 +511,7 @@ DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to)
         {
             classes = to->unused_classes;
             to->ptrfeed = classes->ptrfeed;
+            classes->ptrfeed = NULL;
         }
 
         p = &to->ptrfeed;
-- 
1.7.1