USB: serial: ch341.c: remove dbg() usage

dbg() was a very old USB-serial-specific macro.
This patch removes it from being used in the
driver and uses dev_dbg() instead.

CC: Johan Hovold <jhovold@gmail.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/ch341.c

@@ -93,8 +93,9 @@ static int ch341_control_out(struct usb_device *dev, u8 request,
 			     u16 value, u16 index)
 {
 	int r;
-	dbg("ch341_control_out(%02x,%02x,%04x,%04x)", USB_DIR_OUT|0x40,
-		(int)request, (int)value, (int)index);
+
+	dev_dbg(&dev->dev, "ch341_control_out(%02x,%02x,%04x,%04x)\n",
+		USB_DIR_OUT|0x40, (int)request, (int)value, (int)index);
 
 	r = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
@@ -108,8 +109,10 @@ static int ch341_control_in(struct usb_device *dev,
 			    char *buf, unsigned bufsize)
 {
 	int r;
-	dbg("ch341_control_in(%02x,%02x,%04x,%04x,%p,%u)", USB_DIR_IN|0x40,
-		(int)request, (int)value, (int)index, buf, (int)bufsize);
+
+	dev_dbg(&dev->dev, "ch341_control_in(%02x,%02x,%04x,%04x,%p,%u)\n",
+		USB_DIR_IN|0x40, (int)request, (int)value, (int)index, buf,
+		(int)bufsize);
 
 	r = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
@@ -320,7 +323,7 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (r)
 		goto out;
 
-	dbg("%s - submitting interrupt urb", __func__);
+	dev_dbg(&port->dev, "%s - submitting interrupt urb", __func__);
 	r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (r) {
 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
@@ -390,18 +393,18 @@ static void ch341_break_ctl(struct tty_struct *tty, int break_state)
 				__func__, r);
 		goto out;
 	}
-	dbg("%s - initial ch341 break register contents - reg1: %x, reg2: %x",
+	dev_dbg(&port->dev, "%s - initial ch341 break register contents - reg1: %x, reg2: %x\n",
 		__func__, break_reg[0], break_reg[1]);
 	if (break_state != 0) {
-		dbg("%s - Enter break state requested", __func__);
+		dev_dbg(&port->dev, "%s - Enter break state requested\n", __func__);
 		break_reg[0] &= ~CH341_NBREAK_BITS_REG1;
 		break_reg[1] &= ~CH341_NBREAK_BITS_REG2;
 	} else {
-		dbg("%s - Leave break state requested", __func__);
+		dev_dbg(&port->dev, "%s - Leave break state requested\n", __func__);
 		break_reg[0] |= CH341_NBREAK_BITS_REG1;
 		break_reg[1] |= CH341_NBREAK_BITS_REG2;
 	}
-	dbg("%s - New ch341 break register contents - reg1: %x, reg2: %x",
+	dev_dbg(&port->dev, "%s - New ch341 break register contents - reg1: %x, reg2: %x\n",
 		__func__, break_reg[0], break_reg[1]);
 	reg_contents = get_unaligned_le16(break_reg);
 	r = ch341_control_out(port->serial->dev, CH341_REQ_WRITE_REG,
@@ -451,12 +454,12 @@ static void ch341_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    urb->status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
+			__func__, urb->status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    urb->status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
+			__func__, urb->status);
 		goto exit;
 	}
 
@@ -536,15 +539,16 @@ static int ch341_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
+
+	dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	case TIOCMIWAIT:
-		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+		dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,  port->number);
 		return wait_modem_info(port, arg);
 
 	default:
-		dbg("%s not supported = 0x%04x", __func__, cmd);
+		dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd);
 		break;
 	}
 
@@ -572,7 +576,7 @@ static int ch341_tiocmget(struct tty_struct *tty)
 		  | ((status & CH341_BIT_RI)	? TIOCM_RI  : 0)
 		  | ((status & CH341_BIT_DCD)	? TIOCM_CD  : 0);
 
-	dbg("%s - result = %x", __func__, result);
+	dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);
 
 	return result;
 }