From: Iuliana Prodan iuliana.prodan@nxp.com
[ Upstream commit c59a1d41672a89b5cac49db1a472ff889e35a2d2 ]
Check the return value of the hardware registration for caam_rng and free resources in case of failure.
Fixes: e24f7c9e87d4 ("crypto: caam - hwrng support") Signed-off-by: Iuliana Prodan iuliana.prodan@nxp.com Reviewed-by: Horia Geanta horia.geanta@nxp.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/crypto/caam/caamrng.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c index fde07d4..ff6718a 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -353,7 +353,10 @@ static int __init caam_rng_init(void) goto free_rng_ctx;
dev_info(dev, "registering rng-caam\n"); - return hwrng_register(&caam_rng); + + err = hwrng_register(&caam_rng); + if (!err) + return err;
free_rng_ctx: kfree(rng_ctx);