tree c1cec8594972926936365b124a10a5ce05233265
parent b55f84e2d527182e7c611d466cd0bb6ddce201de
author David Woodhouse <dwmw2@infradead.org> 1364558095 +0000
committer Jeff Garzik <jgarzik@redhat.com> 1365032757 -0400

libata: fix DMA to stack in reading devslp_timing parameters

Commit 803739d25c2343da6d2f95eebdcbc08bf67097d4 ("[libata] replace
sata_settings with devslp_timing"), which was also Cc: stable, used a
stack buffer to receive data from ata_read_log_page(), which triggers
the following warning:
 ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff880140469948]

Fix this by using ap->sector_buf instead of a stack buffer.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>