[MIPS] save_context_stack fix

CONFIG_KALLSYMS=n case is obviously wrong, though it is harmless since
CONFIG_KALLSYMS is always enabled with CONFIG_STACKTRACE for now.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index 4aabe52..a586aba 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -57,7 +57,7 @@
 		pc = unwind_stack(task, &sp, pc, &ra);
 	} while (pc);
 #else
-	save_raw_context_stack(sp);
+	save_raw_context_stack(trace, sp);
 #endif
 }