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Guard evdi_open_attached_to() against a NULL parent device #593

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Guard evdi_open_attached_to() against a NULL parent device #593

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4 changes: 3 additions & 1 deletion library/evdi_lib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -639,7 +639,9 @@ int evdi_add_device(void)
// deprecated, use evdi_open_attached_to_fixed
evdi_handle evdi_open_attached_to(const char *sysfs_parent_device)
{
return evdi_open_attached_to_fixed(sysfs_parent_device, strlen(sysfs_parent_device));
return evdi_open_attached_to_fixed(
sysfs_parent_device,
sysfs_parent_device ? strlen(sysfs_parent_device) : 0);
}

evdi_handle evdi_open_attached_to_fixed(const char *sysfs_parent_device, size_t length)
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