From: Mark Lord <lkml@rtr.ca>
Date: Wed, 7 Dec 2005 22:46:57 +0000 (-0500)
Subject: [SCSI] Fix incorrect pointer in megaraid.c MODE_SENSE emulation
X-Git-Tag: firefly_0821_release~38603^2~84^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f0353301e6752399ceb874ede7f44e3571c5e4f3;p=firefly-linux-kernel-4.4.55.git

[SCSI] Fix incorrect pointer in megaraid.c MODE_SENSE emulation

The SCSI megaraid drive goes to great effort to kmap
the scatterlist buffer (if used), but then uses the
wrong pointer when copying to it afterward.

Signed-off-by:  Mark Lord <lkml@rtr.ca>
Acked by: Ju, Seokmann <Seokmann.Ju@engenio.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index f9792528e33f..578143e93a6f 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -664,7 +664,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
 					sg->offset;
 			} else
 				buf = cmd->request_buffer;
-			memset(cmd->request_buffer, 0, cmd->cmnd[4]);
+			memset(buf, 0, cmd->cmnd[4]);
 			if (cmd->use_sg) {
 				struct scatterlist *sg;