diff --git a/[refs] b/[refs]
index b10a9e89f4be..556b609507d6 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e8dd4757a6cf0a8909148a61b89fa3a6d4f9b3ee
+refs/heads/master: 93e3d58284626ff6466f9c3dac8800cd6f8079c6
diff --git a/trunk/include/linux/serial.h b/trunk/include/linux/serial.h
index c8613c3ff9d3..c3b45add494d 100644
--- a/trunk/include/linux/serial.h
+++ b/trunk/include/linux/serial.h
@@ -151,7 +151,7 @@ struct serial_uart_config {
 #define ASYNC_BUGGY_UART	(1U << ASYNCB_BUGGY_UART)
 #define ASYNC_AUTOPROBE		(1U << ASYNCB_AUTOPROBE)
 
-#define ASYNC_FLAGS		((1U << ASYNCB_LAST_USER) - 1)
+#define ASYNC_FLAGS		((1U << (ASYNCB_LAST_USER + 1)) - 1)
 #define ASYNC_USR_MASK		(ASYNC_SPD_HI|ASYNC_SPD_VHI| \
 		ASYNC_CALLOUT_NOHUP|ASYNC_SPD_SHI|ASYNC_LOW_LATENCY)
 #define ASYNC_SPD_CUST		(ASYNC_SPD_HI|ASYNC_SPD_VHI)