cosa: missing error code on failure in probe()

If register_hdlc_device() fails, the current code returns 0 but we
should return an error code instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 7193b7304fdd..848ea6a399f2 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -589,7 +589,8 @@ static int cosa_probe(int base, int irq, int dma)
                 chan->netdev->base_addr = chan->cosa->datareg;
                 chan->netdev->irq = chan->cosa->irq;
                 chan->netdev->dma = chan->cosa->dma;
-                if (register_hdlc_device(chan->netdev)) {
+                err = register_hdlc_device(chan->netdev);
+                if (err) {
                         netdev_warn(chan->netdev,
                                     "register_hdlc_device() failed\n");
                         free_netdev(chan->netdev);