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authorDavid S. Miller <davem@davemloft.net>2013-02-14 23:49:01 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-02-28 18:32:26 +0400
commitddab81f4d0998efd4d3e288a26379fb4957cb5f7 (patch)
treed489dad2826eb16af2cc4f675cf6fa3473d5e859 /drivers/block
parent131fb7cce88c8c953429ecee478477db81727273 (diff)
downloadlinux-ddab81f4d0998efd4d3e288a26379fb4957cb5f7.tar.xz
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/sunvdc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 48e8fee9f2d4..94f6ae2bd0ce 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -461,7 +461,7 @@ static int generic_request(struct vdc_port *port, u8 op, void *buf, int len)
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) {