diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c index 5bafeb6486be..7e817ea506c6 100644 --- a/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c +++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c @@ -1,22 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * DVB USB framework * * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@posteo.de> * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "dvb_usb_common.h" @@ -37,14 +24,19 @@ static int dvb_usb_v2_generic_io(struct dvb_usb_device *d, ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev, d->props->generic_bulk_ctrl_endpoint), wbuf, wlen, &actual_length, 2000); - if (ret < 0) + if (ret) { dev_err(&d->udev->dev, "%s: usb_bulk_msg() failed=%d\n", KBUILD_MODNAME, ret); - else - ret = actual_length != wlen ? -EIO : 0; + return ret; + } + if (actual_length != wlen) { + dev_err(&d->udev->dev, "%s: usb_bulk_msg() write length=%d, actual=%d\n", + KBUILD_MODNAME, wlen, actual_length); + return -EIO; + } - /* an answer is expected, and no error before */ - if (!ret && rbuf && rlen) { + /* an answer is expected */ + if (rbuf && rlen) { if (d->props->generic_bulk_ctrl_delay) usleep_range(d->props->generic_bulk_ctrl_delay, d->props->generic_bulk_ctrl_delay |