diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb/af9005.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/af9005.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/media/usb/dvb-usb/af9005.c b/drivers/media/usb/dvb-usb/af9005.c index 0827bf3d4e8c..a4bede7e8a1d 100644 --- a/drivers/media/usb/dvb-usb/af9005.c +++ b/drivers/media/usb/dvb-usb/af9005.c @@ -422,6 +422,10 @@ static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (ret == 0) ret = 2; } else { + if (msg[0].len < 2) { + ret = -EOPNOTSUPP; + goto unlock; + } /* write one or more registers */ reg = msg[0].buf[0]; addr = msg[0].addr; @@ -431,6 +435,7 @@ static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], ret = 1; } +unlock: mutex_unlock(&d->i2c_mutex); return ret; } @@ -440,7 +445,7 @@ static u32 af9005_i2c_func(struct i2c_adapter *adapter) return I2C_FUNC_I2C; } -static struct i2c_algorithm af9005_i2c_algo = { +static const struct i2c_algorithm af9005_i2c_algo = { .master_xfer = af9005_i2c_xfer, .functionality = af9005_i2c_func, }; @@ -1000,7 +1005,7 @@ enum { ANSONIC_DVBT_USB, }; -static struct usb_device_id af9005_usb_table[] = { +static const struct usb_device_id af9005_usb_table[] = { DVB_USB_DEV(AFATECH, AFATECH_AF9005), DVB_USB_DEV(TERRATEC, TERRATEC_CINERGY_T_USB_XE), DVB_USB_DEV(ANSONIC, ANSONIC_DVBT_USB), |