From: Alan Cox <alan@redhat.com>

This patch updates ide/pci/generic.c to fix the incorrect returns
causing PCI devices to be left reserved wrongly by the driver.

From: Francois Romieu <romieu@fr.zoreil.com>

Use -ENODEV instead of -EAGAIN.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>