[SCSI] 3w-xxxx: fix oops caused by incorrect REQUEST_SENSE handling
authorJames Bottomley <James.Bottomley@steeleye.com>
Fri, 6 Apr 2007 16:14:56 +0000 (11:14 -0500)
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>
Sat, 14 Apr 2007 13:49:03 +0000 (08:49 -0500)
commit6e3b2bbb197eb12b2bef35bcf2ac3bd6a5facab2
tree2c10a0967b6843a60b76c687750df839b56316b1
parent8a065975c1c00d1ab3293c1adf6f89988bb1b03b
[SCSI] 3w-xxxx: fix oops caused by incorrect REQUEST_SENSE handling

3w-xxxx emulates a REQUEST_SENSE response by simply returning nothing.
Unfortunately, it's assuming that the REQUEST_SENSE command is
implemented with use_sg == 0, which is no longer the case.  The oops
occurs because it's clearing the scatterlist in request_buffer instead
of the memory region.

This is fixed by using tw_transfer_internal() to transfer correctly to
the scatterlist.

Acked-by: adam radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
drivers/scsi/3w-xxxx.c