linux-kernel - [PATCH net 3/7] net: ethernet: stmmac: dwmac-rk: fix probe error path

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Message-Id: <1480516195-27696-4-git-send-email-johan@kernel.org>
Date:   Wed, 30 Nov 2016 15:29:51 +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 3/7] net: ethernet: stmmac: dwmac-rk: fix probe error path

Make sure to disable runtime PM, power down the PHY, and disable clocks
before returning on late probe errors.

Fixes: 27ffefd2d109 ("stmmac: dwmac-rk: create a new probe function")
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 3740a4417fa0..e7aabe56c15a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -988,7 +988,16 @@ static int rk_gmac_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_gmac_exit;
+
+	return 0;
+
+err_gmac_exit:
+	rk_gmac_exit(pdev, plat_dat->bsp_priv);
+
+	return ret;
 }
 
 static const struct of_device_id rk_gmac_dwmac_match[] = {
-- 
2.7.3