Commits
Greg Felix committed 7b6dbd6872c
libata: Check PCI sub-class code before disabling AHCI This patch adds functionality to check the PCI sub-class code of an AHCI capable device before disabling AHCI. It fixes a bug where an ICH7 sata controller is being setup by the BIOS as sub-class 1 (ide) and the AHCI control registers weren't being initialized, thus causing an IO error in piix_disable_ahci(). Signed-off-by: Gregory Felix <greg.felix@gmail.com>