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net: mvmdio: disable/unprepare clocks in EPROBE_DEFER case

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[ Upstream commit 589bf32f09852041fbd3b7ce1a9e703f95c230ba ]

add appropriate calls to clk_disable_unprepare() by jumping to out_mdio
in case orion_mdio_probe() returns -EPROBE_DEFER.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 3d604da1e954 ("net: mvmdio: get and enable optional clock")
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tobias Jordan 2017-12-06 15:23:23 +01:00 committed by Greg Kroah-Hartman
parent 3bc400bad0
commit 9f49cbc7cd
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/marvell/mvmdio.c
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@ -344,7 +344,8 @@ static int orion_mdio_probe(struct platform_device *pdev)
dev->regs + MVMDIO_ERR_INT_MASK);
} else if (dev->err_interrupt == -EPROBE_DEFER) {
return -EPROBE_DEFER;
ret = -EPROBE_DEFER;
goto out_mdio;
}
if (pdev->dev.of_node)