Check return value of of_iomap and handle errors correctly.
Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.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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