From: Iuliana Prodan <iuliana.prodan@xxxxxxx>
[ 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@xxxxxxx>
Reviewed-by: Horia Geanta <horia.geanta@xxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 fde07d4ff019..ff6718a11e9e 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);
--
2.20.1
