From: Jens Axboe <axboe@carl.home.kernel.dk>
Date: Wed, 17 Oct 2007 17:33:05 +0000 (+0200)
Subject: Revert "[SCSI] Remove full sg table memset()"
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a3bec5c5aea0da263111c4d8f8eabc1f8560d7bf;p=linux-beck.git

Revert "[SCSI] Remove full sg table memset()"

A bit too eager - we definitely need to clear the sg table
initially, so that we don't accidentally have ->page & 0x01
true and think that is a chain pointer.

This reverts commit f5c0dde4c66421a3a2d7d6fa604a712c9b0744e5.
---

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 0c86be71bb33..aac8a02cbe80 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -764,6 +764,8 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 		if (unlikely(!sgl))
 			goto enomem;
 
+		memset(sgl, 0, sizeof(*sgl) * sgp->size);
+
 		/*
 		 * first loop through, set initial index and return value
 		 */