sfc: fix error code in efx_devlink_info_running_versions()

Return -EIO if efx_mcdi_rpc() doesn't return enough space.

Fixes: 14743ddd2495 ("sfc: add devlink info support for ef100")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/afGpsbLRHL4_H0KS@stanley.mountain
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/ethernet/sfc/efx_devlink.c b/drivers/net/ethernet/sfc/efx_devlink.c
index d842c60dfc100d0bb6c364a152b89442cac00344..e5c6f81af48be9ec899f2f18743f2ca259db6d9f 100644 (file)
--- a/drivers/net/ethernet/sfc/efx_devlink.c
+++ b/drivers/net/ethernet/sfc/efx_devlink.c
@@ -531,7 +531,7 @@ static int efx_devlink_info_running_versions(struct efx_nic *efx,
        if (rc || outlength < MC_CMD_GET_VERSION_OUT_LEN) {
                netif_err(efx, drv, efx->net_dev,
                          "mcdi MC_CMD_GET_VERSION failed\n");
-               return rc;
+               return rc ?: -EIO;
        }
 
        /* Handle previous output */