x86/LDT: Print the real LDT base address

This was meant to print base address and entry count; make it do so
again.

Fixes: 37868fe113ff "x86/ldt: Make modify_ldt synchronous"
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: http://lkml.kernel.org/r/56797D8402000078000C24F0@prv-mh.provo.novell.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/process_64.c

@@ -125,7 +125,7 @@ void release_thread(struct task_struct *dead_task)
 		if (dead_task->mm->context.ldt) {
 			pr_warn("WARNING: dead process %s still has LDT? <%p/%d>\n",
 				dead_task->comm,
-				dead_task->mm->context.ldt,
+				dead_task->mm->context.ldt->entries,
 				dead_task->mm->context.ldt->size);
 			BUG();
 		}