tree 28df59ad1701c407ecdd3b08295093dffc678eb2
parent 83d7dbc4095a0c314b191c573be5fb4fa6ce0897
author Sergei Shtylyov <sshtylyov@ru.mvista.com> 1159863257 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159887847 -0700

[PATCH] ide_dma_speed() fixes

ide_dma_speed() fails to actually honor the IDE drivers' mode support
masks) because of the bogus checks -- thus, selecting the DMA transfer mode
that the driver explicitly refuses to support is possible.  Additionally,
there is no check for validity of the UltraDMA mode data in the drive ID,
and the function is misdocumented.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>