• Troy Heber's avatar
    pci/dmar: correct off-by-one error in dmar_fault() · 8211a7b5
    Troy Heber authored
    DMAR faults are recorded into a ring of "fault recording registers".
    fault_index is a 0-based index into the ring. The code allows the
    0-based fault_index to be equal to the total number of fault registers
    available from the cap_num_fault_regs() macro, which causes access
    beyond the last available register.
    
    Signed-off-by Troy Heber <troy.heber@hp.com>
    Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
    8211a7b5
dmar.c 31.1 KB