[PATCH AUTOSEL 4.19 486/671] crypto: caam - free resources in case caam_rng registration failed
From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-16 18:46:09
Also in:
linux-crypto, stable
Subsystem:
crypto api, freescale caam (cryptographic acceleration and assurance module) driver, the rest · Maintainers:
Herbert Xu, "David S. Miller", Horia Geantă, Pankaj Gupta, Gaurav Jain, Linus Torvalds
From: Iuliana Prodan <redacted>
[ 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 <redacted>
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>
---
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