commit 84eb8fb42c120ff32b201c1cdd910033c888f699
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tue Jan 05 19:41:44 2010 +0900
committer James Bottomley <James.Bottomley@suse.de> Mon Feb 08 13:43:18 2010 -0600
tree 6524fd3b36c939f532b579448e6a5fbda47d02b7
parent 0f19bc681ed0849a2b95778460a0a8132e3700e2

[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>