From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mark Kettenis , "David S. Miller" Subject: [ 42/86] sunvdc: Fix off-by-one in generic_request(). Date: Tue, 26 Feb 2013 16:07:50 -0800 Message-Id: <20130226235917.257432733@linuxfoundation.org> In-Reply-To: <20130226235912.881663118@linuxfoundation.org> References: <20130226235912.881663118@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: "David S. Miller" [ Upstream commit f4d9605434c0fd4cc8639bf25cfc043418c52362 ] The 'operations' bitmap corresponds one-for-one with the operation codes, no adjustment is necessary. Reported-by: Mark Kettenis Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- 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) {