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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: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2016-10-19 15:46:39 +02:00
parent c2b3355920
commit 0407f1ce8f
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/serial/cp210x.c
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@ -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);