Replace remaining references to "driverfs" with "sysfs".

Globally, s/driverfs/sysfs/g.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 172bacf..5fd734f 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -477,7 +477,7 @@
 		return -ENODEV;
 	}
 
-	/* set up the driverfs linkage to our parent device */
+	/* set up the sysfs linkage to our parent device */
 	sis630_adapter.dev.parent = &dev->dev;
 
 	sprintf(sis630_adapter.name, "SMBus SIS630 adapter at %04x",