From 616e8a091a035c0bd9b871695f4af191df123caa Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 13 Nov 2006 18:04:59 +0100
Subject: [PATCH] [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>
---
block/scsi_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 2dc326421a24a..a19338e6215da 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -246,10 +246,10 @@ static int sg_io(struct file *file, request_queue_t *q,
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;
}
--
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