Provided by: linux-doc-2.6.15_2.6.15-23.39_all
mtrr_del - delete a memory type region
int mtrr_del (int reg, unsigned long base, unsigned long size);
reg Register returned by mtrr_add
base Physical base address
size Size of region
If register is supplied then base and size are ignored. This is how
drivers should call it.
Releases an MTRR region. If the usage count drops to zero the register
is freed and the region returns to default state. On success the
register is returned, on failure a negative error code.