[PATCH net] net: phy: propagate an error back to the callers of phy_sfp_probe

[Leon Romanovsky]

From: Leon Romanovsky <leo...@mellanox.com>

The compilation warning below reveals that the errors returned from
the sfp_bus_add_upstream() call are not propagated to the callers.
Fix it by returning "ret".

14:37:51 drivers/net/phy/phy_device.c: In function 'phy_sfp_probe':
14:37:51 drivers/net/phy/phy_device.c:1236:6: warning: variable 'ret'
   set but not used [-Wunused-but-set-variable]
14:37:51  1236 |  int ret;
14:37:51       |      ^~~

Fixes: 298e54fa810e ("net: phy: add core phylib sfp support")
Signed-off-by: Leon Romanovsky <leo...@mellanox.com>
---
 drivers/net/phy/phy_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index ac2784192472..697c74deb222 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1233,7 +1233,7 @@ int phy_sfp_probe(struct phy_device *phydev,
                  const struct sfp_upstream_ops *ops)
 {
        struct sfp_bus *bus;
-       int ret;
+       int ret = 0;

        if (phydev->mdio.dev.fwnode) {
                bus = sfp_bus_find_fwnode(phydev->mdio.dev.fwnode);
@@ -1245,7 +1245,7 @@ int phy_sfp_probe(struct phy_device *phydev,
                ret = sfp_bus_add_upstream(bus, phydev, ops);
                sfp_bus_put(bus);
        }
-       return 0;
+       return ret;
 }
 EXPORT_SYMBOL(phy_sfp_probe);

--
2.26.2