sh: flag the default unwinder as reliable.

This flags the default unwinder as reliable, as it tends to be reliable
enough for the purposes of the stacktrace buffer. We leave the unreliable
cases for the unwind methods that we know to be completely broken.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/dumpstack.c

@@ -61,7 +61,7 @@ stack_reader_dump(struct task_struct *task, struct pt_regs *regs,
 		unsigned long addr = *sp++;
 
 		if (__kernel_text_address(addr)) {
-			ops->address(data, addr, 0);
+			ops->address(data, addr, 1);
 
 			print_ftrace_graph_addr(addr, data, ops,
 						context, &graph);