radeonfb: give i2c buses nicer names

The name of the i2c buses shows in the output of "i2cdetect -l", so
it's important to give informative names.

Signed-off-by: Jean Delvare <[e-mail]>
Acked-by: Benjamin Herrenschmidt <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/aty/radeon_i2c.c

···
 {
 	int rc;
 
-	strcpy(chan->adapter.name, name);
+	snprintf(chan->adapter.name, sizeof(chan->adapter.name),
+		 "radeonfb %s", name);
 	chan->adapter.owner		= THIS_MODULE;
 	chan->adapter.id		= I2C_HW_B_RADEON;
 	chan->adapter.algo_data		= &chan->algo;