| 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(). |
| |
| [ 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: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| 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) { |
