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Commit 0407f1ce authored by Johan Hovold's avatar Johan Hovold
Browse files

USB: serial: cp210x: return -EIO on short control transfers 



Return -EIO on short control transfers rather than -EPROTO which is used
for lower-level transfer errors.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
parent c2b33559

drivers/usb/serial/cp210x.c

+3 −3
Original line number Diff line number Diff line
@@ -401,7 +401,7 @@ static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req, 
		dev_err(&port->dev, "failed get req 0x%x size %d status: %d\n",

				req, bufsize, result);

		if (result >= 0)

			result = -EPROTO;

			result = -EIO;



		/*

		 * FIXME Some callers don't bother to check for error,
@@ -514,7 +514,7 @@ static int cp210x_write_reg_block(struct usb_serial_port *port, u8 req, 
		dev_err(&port->dev, "failed set req 0x%x size %d status: %d\n",

				req, bufsize, result);

		if (result >= 0)

			result = -EPROTO;

			result = -EIO;

	}



	return result;
@@ -682,7 +682,7 @@ static int cp210x_get_tx_queue_byte_count(struct usb_serial_port *port, 
	} else {

		dev_err(&port->dev, "failed to get comm status: %d\n", result);

		if (result >= 0)

			result = -EPROTO;

			result = -EIO;

	}



	kfree(sts);