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>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
index b1e5f24708c9..05e46a82cdb1 100644
--- 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[] = {