1 files changed, 19 insertions, 9 deletions

diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index be086e4c76b6..b22ac3258523 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/tty.h>
 #include <linux/console.h>
+#include <linux/serial.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
@@ -63,7 +64,7 @@ static int usb_console_setup(struct console *co, char *options)
         char *s;
         struct usb_serial *serial;
         struct usb_serial_port *port;
-        int retval = 0;
+        int retval;
         struct tty_struct *tty = NULL;
         struct ktermios *termios = NULL, dummy;
 
@@ -116,13 +117,17 @@ static int usb_console_setup(struct console *co, char *options)
                 return -ENODEV;
         }
 
-        port = serial->port[0];
+        retval = usb_autopm_get_interface(serial->interface);
+        if (retval)
+                goto error_get_interface;
+
+        port = serial->port[co->index - serial->minor];
         tty_port_tty_set(&port->port, NULL);
 
         info->port = port;
 
         ++port->port.count;
-        if (port->port.count == 1) {
+        if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
                 if (serial->type->set_termios) {
                         /*
                          * allocate a fake tty so the driver can initialize
@@ -168,6 +173,7 @@ static int usb_console_setup(struct console *co, char *options)
                         kfree(termios);
                         kfree(tty);
                 }
+                set_bit(ASYNCB_INITIALIZED, &port->port.flags);
         }
         /* Now that any required fake tty operations are completed restore
          * the tty port count */
@@ -175,18 +181,22 @@ static int usb_console_setup(struct console *co, char *options)
         /* The console is special in terms of closing the device so
          * indicate this port is now acting as a system console. */
         port->console = 1;
-        retval = 0;
 
-out:
+        mutex_unlock(&serial->disc_mutex);
         return retval;
-free_termios:
+
+ free_termios:
         kfree(termios);
         tty_port_tty_set(&port->port, NULL);
-free_tty:
+ free_tty:
         kfree(tty);
-reset_open_count:
+ reset_open_count:
         port->port.count = 0;
-        goto out;
+        usb_autopm_put_interface(serial->interface);
+ error_get_interface:
+        usb_serial_put(serial);
+        mutex_unlock(&serial->disc_mutex);
+        return retval;
 }
 
 static void usb_console_write(struct console *co,