On Wed, Nov 04, 2020 at 12:17:02PM +0530, Himadri Pandya wrote:
> The new usb_control_msg_recv() and usb_control_msg_send() nicely wraps
> usb_control_msg() with proper error check. Hence use the wrappers
> instead of calling usb_control_msg() directly.
>
> Signed-off-by: Himadri Pandya <[email protected]>
> ---
> drivers/usb/serial/keyspan_pda.c | 172 +++++++++++++------------------
> 1 file changed, 72 insertions(+), 100 deletions(-)
>
> diff --git a/drivers/usb/serial/keyspan_pda.c
> b/drivers/usb/serial/keyspan_pda.c
> index c1333919716b..44e1c4490fa9 100644
> --- a/drivers/usb/serial/keyspan_pda.c
> +++ b/drivers/usb/serial/keyspan_pda.c
There were some changes done to this driver around the same time that
you submitted these so this one needs to be rebased.
> @@ -359,22 +361,11 @@ static int keyspan_pda_get_modem_info(struct usb_serial
> *serial,
> unsigned char *value)
> {
> int rc;
> - u8 *data;
> -
> - data = kmalloc(1, GFP_KERNEL);
> - if (!data)
> - return -ENOMEM;
> -
> - rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
> - 3, /* get pins */
> - USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN,
> - 0, 0, data, 1, 2000);
> - if (rc == 1)
> - *value = *data;
> - else if (rc >= 0)
> - rc = -EIO;
> -
> - kfree(data);
> + rc = usb_control_msg_recv(serial->dev, 0,
> + 3, /* get pins */
> + USB_TYPE_VENDOR | USB_RECIP_INTERFACE |
> + USB_DIR_IN, 0, 0, value, 1, 2000,
> + GFP_KERNEL);
> return rc;
> }
Please only change the requests with a data stage like this one, but
avoid breaking the request argument over multiple lines.
Johan
