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    Subject[PATCH 4.19 500/639] crypto: caam - free resources in case caam_rng registration failed
    Date
    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>
    ---
    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 fde07d4ff0190..ff6718a11e9ec 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


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