On Tue, Jul 23, 2013 at 11:54:10AM +0800, Xiaotian Feng wrote: > commit b29900e6 (AHCI: Make distinct names for ports in /proc/interrupts) > introuded a regression, which resulted Null pointer dereference for achi > host with dummy ports. For ahci ports, when the port is dummy port, its > private_data will be NULL, as ata_dummy_port_ops doesn't support ->port_start. > > changes in v2: use pp to check dummy ports, update comments > > Reported-and-tested-by: Alex Williamson <alex.williamson@xxxxxxxxxx> > Signed-off-by: Xiaotian Feng <xtfeng@xxxxxxxxx> > Cc: Alexander Gordeev <agordeev@xxxxxxxxxx> > Cc: Tejun Heo <tj@xxxxxxxxxx> > Cc: linux-ide@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx Applied to libata/for-3.11-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html