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Date: Mon, 29 Aug 2016 22:40:16 +0530 From: Arvind Yadav <arvind.yadav.cs@...il.com> To: f.fainelli@...il.com, rjui@...adcom.com, sbranden@...adcom.com, bcm-kernel-feedback-list@...adcom.com, lee@...nel.org, eric@...olt.net, yendapally.reddy@...adcom.com Cc: linux-crypto@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, mpm@...enic.com, herbert@...dor.apana.org.au, Arvind Yadav <arvind.yadav.cs@...il.com> Subject: [PATCH] char: hw_random: bcm2835: handle of_iomap failures in bcm2835 driver Check return value of of_iomap and handle errors correctly. Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com> --- drivers/char/hw_random/bcm2835-rng.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c index af21492..574211a 100644 --- a/drivers/char/hw_random/bcm2835-rng.c +++ b/drivers/char/hw_random/bcm2835-rng.c @@ -92,9 +92,10 @@ static int bcm2835_rng_probe(struct platform_device *pdev) bcm2835_rng_ops.priv = (unsigned long)rng_base; rng_id = of_match_node(bcm2835_rng_of_match, np); - if (!rng_id) + if (!rng_id) { + iounmap(rng_base); return -EINVAL; - + } /* Check for rng init function, execute it */ rng_setup = rng_id->data; if (rng_setup) -- 2.7.4
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