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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2021-03-05 04:57:17 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-03-12 16:04:04 +0300 |
| commit | 282894556b8349d3c095eedadc4dde9495d48445 (patch) | |
| tree | b8054acc9fa1aca76ba8369d594a56057613eae0 /drivers/crypto | |
| parent | 90274769cf7926a7a14f1cd3f47b66de76e0adb4 (diff) | |
| download | linux-282894556b8349d3c095eedadc4dde9495d48445.tar.xz | |
crypto: sun8i-ce - fix error return code in sun8i_ce_prng_generate()
When dma_mapping_error() returns an error, no error return code of
sun8i_ce_prng_generate() is assigned.
To fix this bug, err is assigned with -EFAULT as error return code.
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c index cfde9ee4356b..cd1baee424a1 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c @@ -99,6 +99,7 @@ int sun8i_ce_prng_generate(struct crypto_rng *tfm, const u8 *src, dma_iv = dma_map_single(ce->dev, ctx->seed, ctx->slen, DMA_TO_DEVICE); if (dma_mapping_error(ce->dev, dma_iv)) { dev_err(ce->dev, "Cannot DMA MAP IV\n"); + err = -EFAULT; goto err_iv; } |