On 07/29/2011 09:57 AM, HoP wrote:
> When I2C_WRITE is used the msg[] array contains one element only.
> Don't access msg[1] in that case. Also moved rest of msg2[1]
> setting to be used only if needed.
>
> Signed-off-by: Honza Petrous <[email protected]>
Acked-by: Antti Palosaari <[email protected]>
>
> ---
>
> diff -r ae517614bf00 drivers/media/dvb/frontends/cxd2820r_core.c
> --- a/drivers/media/dvb/frontends/cxd2820r_core.c Thu Jul 28 15:44:49
> 2011 +0200
> +++ b/drivers/media/dvb/frontends/cxd2820r_core.c Thu Jul 28 16:20:17
> 2011 +0200
> @@ -747,12 +747,7 @@ static int cxd2820r_tuner_i2c_xfer(struc
> .flags = 0,
> .len = sizeof(obuf),
> .buf = obuf,
> - }, {
> - .addr = priv->cfg.i2c_address,
> - .flags = I2C_M_RD,
> - .len = msg[1].len,
> - .buf = msg[1].buf,
> - }
> + },
> };
>
> obuf[0] = 0x09;
> @@ -760,6 +755,11 @@ static int cxd2820r_tuner_i2c_xfer(struc
> if (num == 2) { /* I2C read */
> obuf[1] = (msg[0].addr << 1) | I2C_M_RD; /* I2C RD flag */
> msg2[0].len = sizeof(obuf) - 1; /* maybe HW bug ? */
> +
> + msg2[1].addr = priv->cfg.i2c_address,
> + msg2[1].flags = I2C_M_RD,
> + msg2[1].len = msg[1].len,
> + msg2[1].buf = msg[1].buf,
> }
> memcpy(&obuf[2], msg[0].buf, msg[0].len);
--
http://palosaari.fi/
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