diff options
Diffstat (limited to 'drivers/media/video/cx231xx/cx231xx-input.c')
| -rw-r--r-- | drivers/media/video/cx231xx/cx231xx-input.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c index 45e14cac4622..96176e9db5a2 100644 --- a/drivers/media/video/cx231xx/cx231xx-input.c +++ b/drivers/media/video/cx231xx/cx231xx-input.c @@ -27,12 +27,16 @@ static int get_key_isdbt(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { + int rc; u8 cmd, scancode; dev_dbg(&ir->rc->input_dev->dev, "%s\n", __func__); /* poll IR chip */ - if (1 != i2c_master_recv(ir->c, &cmd, 1)) + rc = i2c_master_recv(ir->c, &cmd, 1); + if (rc < 0) + return rc; + if (rc != 1) return -EIO; /* it seems that 0xFE indicates that a button is still hold @@ -102,11 +106,14 @@ int cx231xx_ir_init(struct cx231xx *dev) ir_i2c_bus = cx231xx_boards[dev->model].ir_i2c_master; dev_dbg(&dev->udev->dev, "Trying to bind ir at bus %d, addr 0x%02x\n", ir_i2c_bus, info.addr); - i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info); + dev->ir_i2c_client = i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info); return 0; } void cx231xx_ir_exit(struct cx231xx *dev) { + if (dev->ir_i2c_client) + i2c_unregister_device(dev->ir_i2c_client); + dev->ir_i2c_client = NULL; } |