From 41ed16fa47350661da01443b8241bf6ca8080fd7 Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hugh@veritas.com>
Date: Mon, 9 Jan 2006 20:46:49 +0000
Subject: [PATCH] [PATCH] Fix sg_page_malloc() memset
sg_page_malloc should clear the data buffer, not that extent of mem_map.
This fixes Jesper's sg_page_free "Bad page states"
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
drivers/scsi/sg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 221e96e2620a6..78aad9582bcfb 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2493,7 +2493,7 @@ sg_page_malloc(int rqSz, int lowDma, int *retSzp)
}
if (resp) {
if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
- memset(resp, 0, resSz);
+ memset(page_address(resp), 0, resSz);
if (retSzp)
*retSzp = resSz;
}
--
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