Merge tag 'usb-serial-5.20-rc1' of...

Merge tag 'usb-serial-5.20-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for 5.20-rc1

Here are the USB-serial updates for 5.20-rc1, including

 - a fix up of some tty-port initialized comments that had got
   truncated and obfuscated

Included are also various clean ups.

All but the final commit have been in linux-next and with no reported
issues.

* tag 'usb-serial-5.20-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: fix tty-port initialized comments
  USB: serial: fix repeated word "the" in comments
  USB: serial: io_edgeport: fix spelling mistakes
  USB: serial: use kmemdup instead of kmalloc + memcpy

drivers/usb/serial/cypress_m8.c

@@ -256,7 +256,7 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 		/*
 		 * Mike Isely <isely@pobox.com> 2-Feb-2008: The
 		 * Cypress app note that describes this mechanism
-		 * states the the low-speed part can't handle more
+		 * states that the low-speed part can't handle more
 		 * than 800 bytes/sec, in which case 4800 baud is the
 		 * safest speed for a part like that.
 		 */

drivers/usb/serial/garmin_gps.c

@@ -988,7 +988,7 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 	garmin_data_p->flags &= ~FLAGS_DROP_DATA;
 	spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
-	buffer = kmalloc(count, GFP_ATOMIC);
+	buffer = kmemdup(buf, count, GFP_ATOMIC);
 	if (!buffer)
 		return -ENOMEM;
 
@@ -998,8 +998,6 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 		return -ENOMEM;
 	}
 
-	memcpy(buffer, buf, count);
-
 	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,

drivers/usb/serial/io_edgeport.c

@@ -220,7 +220,7 @@ struct edgeport_serial {
 	__u8			rxHeader3;			/* receive header byte 3 */
 	__u8			rxPort;				/* the port that we are currently receiving data for */
 	__u8			rxStatusCode;			/* the receive status code */
-	__u8			rxStatusParam;			/* the receive status paramater */
+	__u8			rxStatusParam;			/* the receive status parameter */
 	__s16			rxBytesRemaining;		/* the number of port bytes left to read */
 	struct usb_serial	*serial;			/* loop back to the owner of this object */
 };
@@ -901,7 +901,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	if (!edge_port->open) {
 		/* open timed out */
-		dev_dbg(dev, "%s - open timedout\n", __func__);
+		dev_dbg(dev, "%s - open timeout\n", __func__);
 		edge_port->openPending = false;
 		return -ENODEV;
 	}

drivers/usb/serial/mos7720.c

@@ -826,7 +826,7 @@ static int mos77xx_calc_num_ports(struct usb_serial *serial,
 		/*
 		 * The 7715 uses the first bulk in/out endpoint pair for the
 		 * parallel port, and the second for the serial port. We swap
-		 * the endpoint descriptors here so that the the first and
+		 * the endpoint descriptors here so that the first and
 		 * only registered port structure uses the serial-port
 		 * endpoints.
 		 */

drivers/usb/serial/opticon.c

@@ -208,7 +208,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
 	priv->outstanding_bytes += count;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	buffer = kmalloc(count, GFP_ATOMIC);
+	buffer = kmemdup(buf, count, GFP_ATOMIC);
 	if (!buffer)
 		goto error_no_buffer;
 
@@ -216,8 +216,6 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
 	if (!urb)
 		goto error_no_urb;
 
-	memcpy(buffer, buf, count);
-
 	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	/* The connected devices do not have a bulk write endpoint,

drivers/usb/serial/sierra.c

@@ -453,7 +453,7 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
 		goto error_simple;
 	}
 
-	buffer = kmalloc(writesize, GFP_ATOMIC);
+	buffer = kmemdup(buf, writesize, GFP_ATOMIC);
 	if (!buffer) {
 		retval = -ENOMEM;
 		goto error_no_buffer;
@@ -465,8 +465,6 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
 		goto error_no_urb;
 	}
 
-	memcpy(buffer, buf, writesize);
-
 	usb_serial_debug_data(&port->dev, __func__, writesize, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,
@@ -737,7 +735,8 @@ static void sierra_close(struct usb_serial_port *port)
 
 	/*
 	 * Need to take susp_lock to make sure port is not already being
-	 * resumed, but no need to hold it due to initialized
+	 * resumed, but no need to hold it due to the tty-port initialized
+	 * flag.
 	 */
 	spin_lock_irq(&intfdata->susp_lock);
 	if (--intfdata->open_ports == 0)

drivers/usb/serial/usb-serial.c

@@ -295,7 +295,7 @@ static int serial_open(struct tty_struct *tty, struct file *filp)
  *
  * Shut down a USB serial port. Serialized against activate by the
  * tport mutex and kept to matching open/close pairs
- * of calls by the initialized flag.
+ * of calls by the tty-port initialized flag.
  *
  * Not called if tty is console.
  */

drivers/usb/serial/usb_wwan.c

@@ -390,7 +390,8 @@ void usb_wwan_close(struct usb_serial_port *port)
 
 	/*
 	 * Need to take susp_lock to make sure port is not already being
-	 * resumed, but no need to hold it due to initialized
+	 * resumed, but no need to hold it due to the tty-port initialized
+	 * flag.
 	 */
 	spin_lock_irq(&intfdata->susp_lock);
 	if (--intfdata->open_ports == 0)