Check return value of of_iomap and handle errors correctly. Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html