[PATCH] Fix bad data direction in SG_IO
Contrary to what the name misleads you to believe, SG_DXFER_TO_FROM_DEV
is really just a normal read seen from the device side.
This patch fixes http://lkml.org/lkml/2006/10/13/100
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 2dc3264..a19338e 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -246,10 +246,10 @@
switch (hdr->dxfer_direction) {
default:
return -EINVAL;
- case SG_DXFER_TO_FROM_DEV:
case SG_DXFER_TO_DEV:
writing = 1;
break;
+ case SG_DXFER_TO_FROM_DEV:
case SG_DXFER_FROM_DEV:
break;
}