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authorArthur Williams <taaparthur@gmail.com>2019-10-06 11:55:35 -0700
committerArthur Williams <taaparthur@gmail.com>2019-10-06 12:18:13 -0700
commite693c9657f98c334e9921ca2f8ebf710497c0c6a (patch)
treeaccf1731a48f7b72f6403b32a752f7c4423e9ff4 /dix
parenta505ecba1048048c168472e4b4a92c13f92b0613 (diff)
dix: Check for NULL spriteInfo in GetPairedDevice
There is a race when reseting the XServer that causes spriteInfo to be NULL in GetPairedDevice resulting a segfault and subsequent crash. The problem was noticed when opening a connection, creating master devices, destroying master devices and closing the connection during testing. Signed-off-by: Arthur Williams <taaparthur@gmail.com>
Diffstat (limited to 'dix')
-rw-r--r--dix/devices.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/dix/devices.c b/dix/devices.c
index 1b18b168e..00c453980 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -2656,7 +2656,7 @@ GetPairedDevice(DeviceIntPtr dev)
if (!IsMaster(dev) && !IsFloating(dev))
dev = GetMaster(dev, MASTER_ATTACHED);
- return dev->spriteInfo->paired;
+ return dev->spriteInfo? dev->spriteInfo->paired: NULL;
}
/**