USB: usb_serial_console: fix command line parsing

Currently usb serial console support ignores the device and always use
ttyUSB0.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 0362654d3b52..72ab3bbf0f2e 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -133,11 +133,14 @@ static int usb_console_setup(struct console *co, char *options)
         }
         co->cflag = cflag;
 
-        /* grab the first serial port that happens to be connected */
-        serial = usb_serial_get_by_index(0);
+        /*
+         * no need to check the index here: if the index is wrong, console
+         * code won't call us
+         */
+        serial = usb_serial_get_by_index(co->index);
         if (serial == NULL) {
                 /* no device is connected yet, sorry :( */
-                err ("No USB device connected to ttyUSB0");
+                err ("No USB device connected to ttyUSB%i", co->index);
                 return -ENODEV;
         }