netdev - [PATCH net 2/7] net: ethernet: stmmac: dwmac-sti: fix probe error path

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Date:   Wed, 30 Nov 2016 15:29:50 +0100
From:   Johan Hovold <johan@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Joachim Eastwood <manabian@...il.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: [PATCH net 2/7] net: ethernet: stmmac: dwmac-sti: fix probe error path

Make sure to disable clocks before returning on late probe errors.

Fixes: 8387ee21f972 ("stmmac: dwmac-sti: turn setup callback into a
probe function")
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
index 58c05acc2aab..a1ce018bf844 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -365,7 +365,16 @@ static int sti_dwmac_probe(struct platform_device *pdev)
 	if (ret)
 		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_dwmac_exit;
+
+	return 0;
+
+err_dwmac_exit:
+	sti_dwmac_exit(pdev, plat_dat->bsp_priv);
+
+	return ret;
 }
 
 static const struct sti_dwmac_of_data stih4xx_dwmac_data = {
-- 
2.7.3