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barriers: Don't allow destroying other client's barriers

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
This commit is contained in:
Peter Hutterer 2012-12-06 11:59:53 +10:00
parent e130a46ab4
commit 2884b24929
1 changed files with 3 additions and 0 deletions
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3
Xi/xibarriers.c
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@ -534,6 +534,9 @@ XIDestroyPointerBarrier(ClientPtr client,
return err;
}
if (CLIENT_ID(stuff->barrier) != client->index)
return BadAccess;
FreeResource(stuff->barrier, RT_NONE);
return Success;
}