diff options
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-i2c.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/video/cx23885/cx23885-i2c.c b/drivers/media/video/cx23885/cx23885-i2c.c index 154c914ae16f..afb8d6f91d14 100644 --- a/drivers/media/video/cx23885/cx23885-i2c.c +++ b/drivers/media/video/cx23885/cx23885-i2c.c @@ -125,6 +125,10 @@ static int i2c_sendbytes(struct i2c_adapter *i2c_adap, goto err; if (retval == 0) goto eio; + if (!i2c_slave_did_ack(i2c_adap)) { + retval = -ENXIO; + goto err; + } if (i2c_debug) { printk(" <W %02x %02x", msg->addr << 1, msg->buf[0]); if (!(ctrl & I2C_NOSTOP)) @@ -214,6 +218,10 @@ static int i2c_readbytes(struct i2c_adapter *i2c_adap, goto err; if (retval == 0) goto eio; + if (cnt == 0 && !i2c_slave_did_ack(i2c_adap)) { + retval = -ENXIO; + goto err; + } msg->buf[cnt] = cx_read(bus->reg_rdata) & 0xff; if (i2c_debug) { dprintk(1, " %02x", msg->buf[cnt]); |