net: ethernet: stmmac: dwmac-generic: fix probe error path

Make sure to call any exit() callback to undo the effect of init()
before returning on late probe errors.

Fixes: cf3f047b9af4 ("stmmac: move hw init in the probe (v2)")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
index b1e5f24708c923d5b9f4f54924bc1f8c34f64496..05e46a82cdb111c6a543bcaedc5c00f3c179e4c5 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
@@ -53,7 +53,17 @@ static int dwmac_generic_probe(struct platform_device *pdev)
                        return ret;
        }
 
-       return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+       ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+       if (ret)
+               goto err_exit;
+
+       return 0;
+
+err_exit:
+       if (plat_dat->exit)
+               plat_dat->exit(pdev, plat_dat->bsp_priv);
+
+       return ret;
 }
 
 static const struct of_device_id dwmac_generic_match[] = {