diff options
| author | Arvind Yadav <arvind.yadav.cs@gmail.com> | 2016-08-29 20:10:16 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-09-07 16:08:24 +0300 |
| commit | da59c51cf2201b6b242bdea320fcfe7b8d331900 (patch) | |
| tree | aa84ac751e9ec501c5b6aa3f7facd4e80e14b5ee /drivers/char/hw_random/bcm2835-rng.c | |
| parent | 10faa8c0d6c3b22466f97713a9533824a2ea1c57 (diff) | |
| download | linux-da59c51cf2201b6b242bdea320fcfe7b8d331900.tar.xz | |
hwrng: bcm2835 - handle of_iomap failures
Check return value of of_iomap and handle errors correctly.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char/hw_random/bcm2835-rng.c')
| -rw-r--r-- | drivers/char/hw_random/bcm2835-rng.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c index af2149273fe0..574211a49549 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) |