From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Tue, 5 Jan 2010 10:41:44 +0000 (+0900)
Subject: [SCSI] compat_ioct: fix bsg SG_IO
X-Git-Tag: v2.6.33-rc8~12^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84eb8fb42c120ff32b201c1cdd910033c888f699;p=pandora-kernel.git

[SCSI] compat_ioct: fix bsg SG_IO

bsg's SG_IO doesn't work on 32-bit userspace and 64-bit kernelspace.

The problem is that both sg and bsg drivers use SG_IO
ioctl. sg_ioctl_trans() does 32/64-bit conversion even against bsg
header. It messes up bsg header. bsg driver gets garbage.

This patch fixes sg_ioctl_trans to handle only sg header (struct
sg_io_hdr).

Reported-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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