[ 52/58] sunvdc: Fix off-by-one in generic_request().

From: Greg Kroah-Hartman
Date: Mon Feb 25 2013 - 17:22:43 EST


3.7-stable review patch. If anyone has any objections, please let me know.

------------------


From: "David S. Miller" <davem@xxxxxxxxxxxxx>

[ Upstream commit f4d9605434c0fd4cc8639bf25cfc043418c52362 ]

The 'operations' bitmap corresponds one-for-one with the operation
codes, no adjustment is necessary.

Reported-by: Mark Kettenis <mark.kettenis@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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) {


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