1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index e562b122446..9f72be28e6f 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -244,6 +244,13 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state)
         }
 
         /*
+         * It's possible for shutdown to be called after suspend if we get
+         * a DCD drop (hangup) at just the right time.  Clear suspended bit so
+         * we don't try to resume a port that has been shutdown.
+         */
+        clear_bit(ASYNCB_SUSPENDED, &port->flags);
+
+        /*
          * Free the transmit buffer page.
          */
         if (state->xmit.buf) {