libata-acpi: Fix NULL ptr derference in ata_acpi_dev_handle
authorAaron Lu <aaron.lu@intel.com>
Tue, 9 Oct 2012 07:37:48 +0000 (15:37 +0800)
committerJeff Garzik <jgarzik@redhat.com>
Fri, 16 Nov 2012 04:20:55 +0000 (23:20 -0500)
commit60817a680b1bd3341b6909fab7d8a1fcc3a78369
tree7c052113c5c12511f225aca01a0d09d947d62057
parentc5e35d6c512c43105883043dd62cf7257ec3f9f0
libata-acpi: Fix NULL ptr derference in ata_acpi_dev_handle

commit 6b66d95895c149cbc04d4fac5a2f5477c543a8ae didn't handle SATA PMP
case in ata_acpi_bind_device and will cause a NULL ptr dereference when
user attached a SATA drive to the PMP port. Fix this by checking PMP
support.

This bug is reported by Dan van der Ster in the following bugzilla page:
https://bugzilla.kernel.org/show_bug.cgi?id=48211

Reported-by: Dan van der Ster <dan@vanderster.com>
Tested-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tested-by: Simon <tangouniform@sbcglobal.net>
drivers/ata/libata-acpi.c