diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index 6d61f8c..0d5f3c9 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -266,6 +266,7 @@
 		ptr = &remcomInBuffer[1];
 		if (kgdb_hex2long(&ptr, &addr))
 			linux_regs->pc = addr;
+		/* fallthrough */
 	case 'D':
 	case 'k':
 		atomic_set(&kgdb_cpu_doing_single_step, -1);