From: Branislav Radocaj branislav@radocaj.org
[ Upstream commit e46772a6946a7d1f3fbbc1415871851d6651f1d4 ]
If clk_set_rate() fails, we should disable clk before return. Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Branislav Radocaj branislav@radocaj.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/net/ethernet/arc/emac_rockchip.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/arc/emac_rockchip.c b/drivers/net/ethernet/arc/emac_rockchip.c index e278e3d96ee0..c6163874e4e7 100644 --- a/drivers/net/ethernet/arc/emac_rockchip.c +++ b/drivers/net/ethernet/arc/emac_rockchip.c @@ -220,9 +220,11 @@ static int emac_rockchip_probe(struct platform_device *pdev)
/* RMII TX/RX needs always a rate of 25MHz */ err = clk_set_rate(priv->macclk, 25000000); - if (err) + if (err) { dev_err(dev, "failed to change mac clock rate (%d)\n", err); + goto out_clk_disable_macclk; + } }
err = arc_emac_probe(ndev, interface); @@ -232,7 +234,8 @@ static int emac_rockchip_probe(struct platform_device *pdev) }
return 0; - +out_clk_disable_macclk: + clk_disable_unprepare(priv->macclk); out_regulator_disable: if (priv->regulator) regulator_disable(priv->regulator);