[PATCH 3/4] can: flex_can: Correct the checking for frame length in flexcan_start_xmit()

[Marc Kleine-Budde]

From: Luu An Phu <phu.lu...@nxp.com>

The flexcan_start_xmit() function compares the frame length with data
register length to write frame content into data[0] and data[1]
register. Data register length is 4 bytes and frame maximum length is 8
bytes.

Fix the check that compares frame length with 3. Because the register
length is 4.

Signed-off-by: Luu An Phu <phu.lu...@nxp.com>
Reviewed-by: Oliver Hartkopp <socket...@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
---
 drivers/net/can/flexcan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 0626dcfd1f3d..760d2c07e3a2 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -526,7 +526,7 @@ static int flexcan_start_xmit(struct sk_buff *skb, struct 
net_device *dev)
                data = be32_to_cpup((__be32 *)&cf->data[0]);
                flexcan_write(data, &priv->tx_mb->data[0]);
        }
-       if (cf->can_dlc > 3) {
+       if (cf->can_dlc > 4) {
                data = be32_to_cpup((__be32 *)&cf->data[4]);
                flexcan_write(data, &priv->tx_mb->data[1]);
        }
-- 
2.15.1