diff --git a/[refs] b/[refs]
index f5cdc58cd00a..64e1ca65c8b7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f9717f3110c8d05ad65b9a91b698cc0612fd77af
+refs/heads/master: a6b202979661eb32646048aeaad7be7b70c2cd22
diff --git a/trunk/arch/m32r/kernel/ptrace.c b/trunk/arch/m32r/kernel/ptrace.c
index 4c03361537aa..51f5e9aa4901 100644
--- a/trunk/arch/m32r/kernel/ptrace.c
+++ b/trunk/arch/m32r/kernel/ptrace.c
@@ -591,17 +591,16 @@ void user_enable_single_step(struct task_struct *child)
 
 	if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
 	    != sizeof(insn))
-		return -EIO;
+		return;
 
 	compute_next_pc(insn, pc, &next_pc, child);
 	if (next_pc & 0x80000000)
-		return -EIO;
+		return;
 
 	if (embed_debug_trap(child, next_pc))
-		return -EIO;
+		return;
 
 	invalidate_cache();
-	return 0;
 }
 
 void user_disable_single_step(struct task_struct *child)