blob: 8897037c25ce3cb4cb6a7d7939ef65e9c98d938d [file] [log] [blame]
From 58e64b7e661116ea2e9989f43777e4a47319065c Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Thu, 14 Feb 2013 11:49:01 -0800
Subject: sunvdc: Fix off-by-one in generic_request().
From: "David S. Miller" <davem@davemloft.net>
[ Upstream commit f4d9605434c0fd4cc8639bf25cfc043418c52362 ]
The 'operations' bitmap corresponds one-for-one with the operation
codes, no adjustment is necessary.
Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/block/sunvdc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -461,7 +461,7 @@ static int generic_request(struct vdc_po
int op_len, err;
void *req_buf;
- if (!(((u64)1 << ((u64)op - 1)) & port->operations))
+ if (!(((u64)1 << (u64)op) & port->operations))
return -EOPNOTSUPP;
switch (op) {