signal/x86: Remove pkey parameter from mm_fault_error

After the previous cleanups to do_sigbus and and bad_area_nosemaphore
mm_fault_error no now longer uses it's pkey parameter.  Therefore
remove the unused parameter.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

arch/x86/mm/fault.c

@@ -1000,7 +1000,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
 
 static noinline void
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, u32 *pkey, vm_fault_t fault)
+	       unsigned long address, vm_fault_t fault)
 {
 	if (fatal_signal_pending(current) && !(error_code & X86_PF_USER)) {
 		no_context(regs, error_code, address, 0, 0);
@@ -1420,7 +1420,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 
 	up_read(&mm->mmap_sem);
 	if (unlikely(fault & VM_FAULT_ERROR)) {
-		mm_fault_error(regs, error_code, address, &pkey, fault);
+		mm_fault_error(regs, error_code, address, fault);
 		return;
 	}