提交 dab92064 编写于 作者: T Thomas Petazzoni 提交者: Jason Cooper

dma: mv_xor: fix error handling for clocks

When a channel fails to initialize, we release all ressources,
including clocks. However, a XOR unit is not necessarily associated to
a clock (some variants of Marvell SoCs have a clock for XOR units,
some don't), so we shouldn't unconditionally be releasing the clock.

Instead, just like we do in the mv_xor_remove() function, we should
check if one clock was found before releasing it.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>
上级 ab6e439f
......@@ -1366,8 +1366,11 @@ static int mv_xor_probe(struct platform_device *pdev)
irq_dispose_mapping(xordev->channels[i]->irq);
}
clk_disable_unprepare(xordev->clk);
clk_put(xordev->clk);
if (!IS_ERR(xordev->clk)) {
clk_disable_unprepare(xordev->clk);
clk_put(xordev->clk);
}
return ret;
}
......
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