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Xi: ALLOC_COPY_CLASS_IF should only alloc if to->field doesn't exist.

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This commit is contained in:
Peter Hutterer 2008-04-04 15:01:53 +10:30
parent 035b1b6995
commit 502689847b
1 changed files with 4 additions and 1 deletions
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5
Xi/exevents.c
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@ -363,9 +363,12 @@ DeepCopyDeviceClasses(DeviceIntPtr from, DeviceIntPtr to)
#define ALLOC_COPY_CLASS_IF(field, type) \
if (from->field)\
{ \
to->field = xcalloc(1, sizeof(type)); \
if (!to->field) \
{ \
to->field = xcalloc(1, sizeof(type)); \
if (!to->field) \
FatalError("[Xi] no memory for class shift.\n"); \
} \
memcpy(to->field, from->field, sizeof(type)); \
}