diff --git a/[refs] b/[refs]
index 9aff63d1af95..5aafb33b485a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 345e5a7672f561b539b3249cbe437b8d6595ab1b
+refs/heads/master: 421b541110b20ccff1a7ff3245439cb24efe9812
diff --git a/trunk/arch/sh/kernel/dwarf.c b/trunk/arch/sh/kernel/dwarf.c
index 2d07084e4882..d76a23170dbb 100644
--- a/trunk/arch/sh/kernel/dwarf.c
+++ b/trunk/arch/sh/kernel/dwarf.c
@@ -555,7 +555,7 @@ struct dwarf_frame * dwarf_unwind_stack(unsigned long pc,
 	 * NOTE: the return address is guaranteed to be setup by the
 	 * time this function makes its first function call.
 	 */
-	if (!pc && !prev)
+	if (!pc || !prev)
 		pc = (unsigned long)current_text_addr();
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER