sfc: I2C adapter initialisation fixes

As recommended by Jean Delvare:
- Increase timeout to 50 ms
- Leave adapter class clear so that unwanted drivers do not probe our bus
- Use strlcpy() for name initialisation

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 630406e..9138ee5 100644 (file)
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -223,13 +223,8 @@ static struct i2c_algo_bit_data falcon_i2c_bit_operations = {
        .getsda         = falcon_getsda,
        .getscl         = falcon_getscl,
        .udelay         = 5,
-       /*
-        * This is the number of system clock ticks after which
-        * i2c-algo-bit gives up waiting for SCL to become high.
-        * It must be at least 2 since the first tick can happen
-        * immediately after it starts waiting.
-        */
-       .timeout        = 2,
+       /* Wait up to 50 ms for slave to let us pull SCL high */
+       .timeout        = DIV_ROUND_UP(HZ, 20),
 };
 
 /**************************************************************************
@@ -2479,12 +2474,11 @@ int falcon_probe_nic(struct efx_nic *efx)
 
        /* Initialise I2C adapter */
        efx->i2c_adap.owner = THIS_MODULE;
-       efx->i2c_adap.class = I2C_CLASS_HWMON;
        nic_data->i2c_data = falcon_i2c_bit_operations;
        nic_data->i2c_data.data = efx;
        efx->i2c_adap.algo_data = &nic_data->i2c_data;
        efx->i2c_adap.dev.parent = &efx->pci_dev->dev;
-       strcpy(efx->i2c_adap.name, "SFC4000 GPIO");
+       strlcpy(efx->i2c_adap.name, "SFC4000 GPIO", sizeof(efx->i2c_adap.name));
        rc = i2c_bit_add_bus(&efx->i2c_adap);
        if (rc)
                goto fail5;