[PATCH] char: hw_random: bcm2835: handle of_iomap failures in bcm2835 driver
From: Arvind Yadav <hidden>
Date: 2016-08-30 14:08:54
Also in:
lkml
Subsystem:
hardware random number generator core, the rest · Maintainers:
Olivia Mackall, Herbert Xu, Linus Torvalds
Check return value of of_iomap and handle errors correctly. Signed-off-by: Arvind Yadav <redacted> --- 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