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dix: GetPairedDevice: check if GetMaster returned NULL 

Clears warning from gcc 14.1:

../dix/devices.c: In function ‘GetPairedDevice’:
../dix/devices.c:2734:15: warning: dereference of NULL ‘dev’
 [CWE-476] [-Wanalyzer-null-dereference]
 2734 |     return dev->spriteInfo? dev->spriteInfo->paired: NULL;
      |            ~~~^~~~~~~~~~~~

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1673>
This commit is contained in:
Alan Coopersmith 2024-09-08 13:21:14 -07:00 committed by Enrico Weigelt, metux IT consult
parent 2e35e40f69
commit 8731200722
1 changed files with 1 additions and 1 deletions
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2
dix/devices.c
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@ -2729,7 +2729,7 @@ GetPairedDevice(DeviceIntPtr dev)
if (!IsMaster(dev) && !IsFloating(dev))
dev = GetMaster(dev, MASTER_ATTACHED);
return dev->spriteInfo? dev->spriteInfo->paired: NULL;
return (dev && dev->spriteInfo) ? dev->spriteInfo->paired: NULL;
}
/**