[media] cx88: fix NULL pointer dereference
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / pci / cx88 / cx88-vp3054-i2c.h
1 /*
2
3 cx88-vp3054-i2c.h -- support for the secondary I2C bus of the
4 DNTV Live! DVB-T Pro (VP-3054), wired as:
5 GPIO[0] -> SCL, GPIO[1] -> SDA
6
7 (c) 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22
23 */
24
25 /* ----------------------------------------------------------------------- */
26 struct vp3054_i2c_state {
27 struct i2c_adapter adap;
28 struct i2c_algo_bit_data algo;
29 u32 state;
30 };
31
32 /* ----------------------------------------------------------------------- */
33 #if IS_ENABLED(CONFIG_VIDEO_CX88_VP3054)
34 int vp3054_i2c_probe(struct cx8802_dev *dev);
35 void vp3054_i2c_remove(struct cx8802_dev *dev);
36 #else
37 static inline int vp3054_i2c_probe(struct cx8802_dev *dev)
38 { return 0; }
39 static inline void vp3054_i2c_remove(struct cx8802_dev *dev)
40 { }
41 #endif