Merge tag 'for-chris' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux...

[cascardo/linux.git] / arch / x86 / mm / mpx.c

diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 1202d5c..ef05755 100644 (file)
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -101,19 +101,19 @@ static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
        switch (type) {
        case REG_TYPE_RM:
                regno = X86_MODRM_RM(insn->modrm.value);
-               if (X86_REX_B(insn->rex_prefix.value) == 1)
+               if (X86_REX_B(insn->rex_prefix.value))
                        regno += 8;
                break;
 
        case REG_TYPE_INDEX:
                regno = X86_SIB_INDEX(insn->sib.value);
-               if (X86_REX_X(insn->rex_prefix.value) == 1)
+               if (X86_REX_X(insn->rex_prefix.value))
                        regno += 8;
                break;
 
        case REG_TYPE_BASE:
                regno = X86_SIB_BASE(insn->sib.value);
-               if (X86_REX_B(insn->rex_prefix.value) == 1)
+               if (X86_REX_B(insn->rex_prefix.value))
                        regno += 8;
                break;
 
@@ -123,7 +123,7 @@ static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
                break;
        }
 
-       if (regno > nr_registers) {
+       if (regno >= nr_registers) {
                WARN_ONCE(1, "decoded an instruction with an invalid register");
                return -EINVAL;
        }