Revert "pl2303: improve the chip type information output on startup"

This reverts commit a77a8c23e4db9fb1f776147eda0d85117359c700.

Revert all of the pl2303 changes that went into 3.12-rc1 and -rc2 as
they cause regressions on some versions of the chip.  This will all be
revisited for later kernel versions when we can figure out how to handle
this in a way that does not break working devices.

Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 10 deletions

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 409000a836dd..7efb39cd6f74 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -177,7 +177,6 @@ static int pl2303_startup(struct usb_serial *serial)
 {
         struct pl2303_serial_private *spriv;
         enum pl2303_type type = type_0;
-        char *type_str = "unknown (treating as type_0)";
         unsigned char *buf;
 
         spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
@@ -190,18 +189,14 @@ static int pl2303_startup(struct usb_serial *serial)
                 return -ENOMEM;
         }
 
-        if (serial->dev->descriptor.bDeviceClass == 0x02) {
+        if (serial->dev->descriptor.bDeviceClass == 0x02)
                 type = type_0;
-                type_str = "type_0";
-        } else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) {
+        else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
                 type = HX;
-                type_str = "X/HX";
-        } else if (serial->dev->descriptor.bDeviceClass == 0x00
-                   || serial->dev->descriptor.bDeviceClass == 0xFF) {
+        else if (serial->dev->descriptor.bDeviceClass == 0x00
+                 || serial->dev->descriptor.bDeviceClass == 0xFF)
                 type = type_1;
-                type_str = "type_1";
-        }
-        dev_dbg(&serial->interface->dev, "device type: %s\n", type_str);
+        dev_dbg(&serial->interface->dev, "device type: %d\n", type);
 
         spriv->type = type;
         usb_set_serial_data(serial, spriv);