diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-06-15 00:20:44 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-15 22:25:56 (GMT) |
| commit | d9cb9bd63eb27ac19f26a8547128c053f43a5da8 (patch) | |
| tree | ddba8269435dd7fda01dcc59574ec474a02173a7 /drivers/net/can | |
| parent | 424d54d2dca03805942055e5b19926d33a7d1e31 (diff) | |
| download | linux-d9cb9bd63eb27ac19f26a8547128c053f43a5da8.tar.xz | |
can: c_can: precedence error in c_can_chip_config()
(CAN_CTRLMODE_LISTENONLY & CAN_CTRLMODE_LOOPBACK) is (0x02 & 0x01) which
is zero so the condition is never true. The intent here was to test
that both flags were set.
Cc: <stable@kernel.org> # 2.6.39+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/c_can/c_can.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 8dc84d6..86cd532 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -590,8 +590,8 @@ static void c_can_chip_config(struct net_device *dev) priv->write_reg(priv, &priv->regs->control, CONTROL_ENABLE_AR); - if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY & - CAN_CTRLMODE_LOOPBACK)) { + if ((priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) && + (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)) { /* loopback + silent mode : useful for hot self-test */ priv->write_reg(priv, &priv->regs->control, CONTROL_EIE | CONTROL_SIE | CONTROL_IE | CONTROL_TEST); |