From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 1 Nov 2013 16:17:50 +0000 (-0700)
Subject: Revert "pl2303: improve the chip type information output on startup"
X-Git-Tag: MMI-PSA29.97-13-9~13376^2~11
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b52e111363e366202386f3e67f71681dbbb8e5d9;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

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>
---

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);