diff options
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pcf.c')
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-pcf.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c index a8a5b6d1dd8..b8a6f3bcbae 100644 --- a/drivers/i2c/algos/i2c-algo-pcf.c +++ b/drivers/i2c/algos/i2c-algo-pcf.c @@ -331,13 +331,16 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, int i; int ret=0, timeout, status; + if (adap->xfer_begin) + adap->xfer_begin(adap->data); /* Check for bus busy */ timeout = wait_for_bb(adap); if (timeout) { DEB2(printk(KERN_ERR "i2c-algo-pcf.o: " "Timeout waiting for BB in pcf_xfer\n");) - return -EIO; + i = -EIO; + goto out; } for (i = 0;ret >= 0 && i < num; i++) { @@ -359,12 +362,14 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, if (timeout) { if (timeout == -EINTR) { /* arbitration lost */ - return (-EINTR); + i = -EINTR; + goto out; } i2c_stop(adap); DEB2(printk(KERN_ERR "i2c-algo-pcf.o: Timeout waiting " "for PIN(1) in pcf_xfer\n");) - return (-EREMOTEIO); + i = -EREMOTEIO; + goto out; } #ifndef STUB_I2C @@ -372,7 +377,8 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, if (status & I2C_PCF_LRB) { i2c_stop(adap); DEB2(printk(KERN_ERR "i2c-algo-pcf.o: No LRB(1) in pcf_xfer\n");) - return (-EREMOTEIO); + i = -EREMOTEIO; + goto out; } #endif @@ -404,6 +410,9 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, } } +out: + if (adap->xfer_end) + adap->xfer_end(adap->data); return (i); } |