i2c: Add IDs to adapters

IDs have been defined but not used by most of the I2C adapters.
By having a unique ID, clients can check for correct connection
during probe.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c
index 844b4ff..b7fb65c 100644
--- a/drivers/i2c/busses/i2c-savage4.c
+++ b/drivers/i2c/busses/i2c-savage4.c
@@ -145,6 +145,7 @@
 
 static struct i2c_adapter savage4_i2c_adapter = {
 	.owner		= THIS_MODULE,
+	.id		= I2C_HW_B_SAVAGE,
 	.name		= "I2C Savage4 adapter",
 	.algo_data	= &sav_i2c_bit_data,
 };