[PATCH] libata: seperate out ata_class_present()

Seperate out ata_class_present() from ata_dev_present().  This is
useful because new reset mechanism deals with classes[] directly.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
1 file changed