phy: cadence: torrent: Set an error code for return

In cdns_torrent_phy_probe the test for too many lanes configured does
not set an error code before taking the error path. This could lead to a
silent failure if the calling code does not detect the error. Add the
code to return -EINVAL in this case.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c
index 1f566d0..28fe026 100644 (file)
--- a/drivers/phy/cadence/phy-cadence-torrent.c
+++ b/drivers/phy/cadence/phy-cadence-torrent.c
@@ -719,6 +719,7 @@ static int cdns_torrent_phy_probe(struct udevice *dev)
 
        if (total_num_lanes > MAX_NUM_LANES) {
                dev_err(dev, "Invalid lane configuration\n");
+               ret = -EINVAL;
                goto put_lnk_rst;
        }