diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/ec168.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/ec168.c | 59 |
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/ec168.c b/drivers/media/usb/dvb-usb-v2/ec168.c index 5c68f3918bc8..973b32356b17 100644 --- a/drivers/media/usb/dvb-usb-v2/ec168.c +++ b/drivers/media/usb/dvb-usb-v2/ec168.c @@ -1,22 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * E3C EC168 DVB USB driver * * Copyright (C) 2009 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #include "ec168.h" @@ -129,6 +115,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], while (i < num) { if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) { if (msg[i].addr == ec168_ec100_config.demod_address) { + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } req.cmd = READ_DEMOD; req.value = 0; req.index = 0xff00 + msg[i].buf[0]; /* reg */ @@ -145,6 +135,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], } } else { if (msg[i].addr == ec168_ec100_config.demod_address) { + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } req.cmd = WRITE_DEMOD; req.value = msg[i].buf[1]; /* val */ req.index = 0xff00 + msg[i].buf[0]; /* reg */ @@ -153,6 +147,10 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], ret = ec168_ctrl_msg(d, &req); i += 1; } else { + if (msg[i].len < 1) { + i = -EOPNOTSUPP; + break; + } req.cmd = WRITE_I2C; req.value = msg[i].buf[0]; /* val */ req.index = 0x0100 + msg[i].addr; /* I2C addr */ @@ -170,7 +168,7 @@ static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], error: mutex_unlock(&d->i2c_mutex); - return i; + return ret; } static u32 ec168_i2c_func(struct i2c_adapter *adapter) @@ -178,7 +176,7 @@ static u32 ec168_i2c_func(struct i2c_adapter *adapter) return I2C_FUNC_I2C; } -static struct i2c_algorithm ec168_i2c_algo = { +static const struct i2c_algorithm ec168_i2c_algo = { .master_xfer = ec168_i2c_xfer, .functionality = ec168_i2c_func, }; @@ -323,7 +321,7 @@ static int ec168_streaming_ctrl(struct dvb_frontend *fe, int onoff) /* DVB USB Driver stuff */ /* bInterfaceNumber 0 is HID * bInterfaceNumber 1 is DVB-T */ -static struct dvb_usb_device_properties ec168_props = { +static const struct dvb_usb_device_properties ec168_props = { .driver_name = KBUILD_MODNAME, .owner = THIS_MODULE, .adapter_nr = adapter_nr, @@ -346,22 +344,17 @@ static struct dvb_usb_device_properties ec168_props = { }, }; -static const struct dvb_usb_driver_info ec168_driver_info = { - .name = "E3C EC168 reference design", - .props = &ec168_props, -}; - static const struct usb_device_id ec168_id[] = { - { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168), - .driver_info = (kernel_ulong_t) &ec168_driver_info }, - { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2), - .driver_info = (kernel_ulong_t) &ec168_driver_info }, - { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3), - .driver_info = (kernel_ulong_t) &ec168_driver_info }, - { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4), - .driver_info = (kernel_ulong_t) &ec168_driver_info }, - { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5), - .driver_info = (kernel_ulong_t) &ec168_driver_info }, + { DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168, + &ec168_props, "E3C EC168 reference design", NULL)}, + { DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2, + &ec168_props, "E3C EC168 reference design", NULL)}, + { DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3, + &ec168_props, "E3C EC168 reference design", NULL)}, + { DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4, + &ec168_props, "E3C EC168 reference design", NULL)}, + { DVB_USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5, + &ec168_props, "E3C EC168 reference design", NULL)}, {} }; MODULE_DEVICE_TABLE(usb, ec168_id); |