NdisFreeString - NtDoc
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// ndis.h
void NdisFreeString(
[in] String
);
View the official Windows Driver Kit DDI referenceNo description available.
The NdisFreeString function releases storage that was allocated by NdisInitializeString for a buffered string.
String [in]An NDIS_STRING type value that describes the string to free. For Windows 2000 and later, NDIS defines the NDIS_STRING type as a UNICODE_STRING type.
An NDIS driver typically calls the NdisInitializeString function during initialization--for example, to set up names passed to the NdisXxxConfiguration functions. For each call that the driver makes to NdisInitializeString, the driver must make a corresponding call to NdisFreeString. When releasing string buffers that were allocated during initialization, a driver must call NdisFreeString before the driver's initialization function returns control.
NdisFreeString must be used only for freeing buffers that were allocated with NdisInitializeString.
DriverEntry of NDIS Protocol Drivers