tty/serial: Skip 'NULL' char after console break when sysrq enabled

[tomoyo/tomoyo-test1.git] / drivers / tty / serial / sunhv.c

diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index f224e8a..ca0d380 100644 (file)
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -148,8 +148,10 @@ static int receive_chars_read(struct uart_port *port)
                        uart_handle_dcd_change(port, 1);
                }
 
-               for (i = 0; i < bytes_read; i++)
-                       uart_handle_sysrq_char(port, con_read_page[i]);
+               if (port->sysrq != 0 &&  *con_read_page) {
+                       for (i = 0; i < bytes_read; i++)
+                               uart_handle_sysrq_char(port, con_read_page[i]);
+               }
 
                if (port->state == NULL)
                        continue;