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Date: Tue, 28 Jan 2020 15:05:37 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Iuliana Prodan <iuliana.prodan@....com>, Horia Geanta <horia.geanta@....com>, Herbert Xu <herbert@...dor.apana.org.au>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.4 118/183] crypto: caam - free resources in case caam_rng registration failed From: Iuliana Prodan <iuliana.prodan@....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@....com> Reviewed-by: Horia Geanta <horia.geanta@....com> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au> Signed-off-by: Sasha Levin <sashal@...nel.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 9b92af2c72412..a77319bf221d8 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -361,7 +361,10 @@ 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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