Commit 7b4c5d30 authored Feb 12, 2018 by Stefan Wahren Committed by Herbert Xu Feb 22, 2018

hwrng: bcm2835 - Handle deferred clock properly



In case the probe of the clock is deferred, we would assume it is
optional. This is wrong, so defer the probe of this driver until
the clock is available.

Fixes: 791af4f4 ("hwrng: bcm2835 - Manage an optional clock")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 4ff8b1dd

drivers/char/hw_random/bcm2835-rng.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -163,6 +163,8 @@ static int bcm2835_rng_probe(struct platform_device *pdev)

		/* Clock is optional on most platforms */
		priv->clk = devm_clk_get(dev, NULL);
		if (IS_ERR(priv->clk) && PTR_ERR(priv->clk) == -EPROBE_DEFER)
		return -EPROBE_DEFER;

		priv->rng.name = pdev->name;
		priv->rng.init = bcm2835_rng_init;

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