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| author | Wei Yongjun <weiyj.lk@gmail.com> | 2016-08-20 15:06:51 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-08-24 21:04:49 +0800 |
| commit | 9d280d05d087f2639385ee7820f59fa79bdf2cc2 (patch) | |
| tree | 455487d5fc0cfab188e1763dae4355023e9ae459 /crypto/drbg.c | |
| parent | 3e9abf79027946f403651629354aa5834d66f96b (diff) | |
| download | linux-crypto-9d280d05d087f2639385ee7820f59fa79bdf2cc2.tar.gz linux-crypto-9d280d05d087f2639385ee7820f59fa79bdf2cc2.zip | |
crypto: drbg - fix error return code
Fix to return a negative error code from the error handling
case instead of 0.
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | crypto/drbg.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/crypto/drbg.c b/crypto/drbg.c index edf3ce04..fb33f7d3 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1178,12 +1178,16 @@ static inline int drbg_alloc_state(struct drbg_state *drbg) goto err; drbg->Vbuf = kmalloc(drbg_statelen(drbg) + ret, GFP_KERNEL); - if (!drbg->Vbuf) + if (!drbg->Vbuf) { + ret = -ENOMEM; goto fini; + } drbg->V = PTR_ALIGN(drbg->Vbuf, ret + 1); drbg->Cbuf = kmalloc(drbg_statelen(drbg) + ret, GFP_KERNEL); - if (!drbg->Cbuf) + if (!drbg->Cbuf) { + ret = -ENOMEM; goto fini; + } drbg->C = PTR_ALIGN(drbg->Cbuf, ret + 1); /* scratchpad is only generated for CTR and Hash */ if (drbg->core->flags & DRBG_HMAC) @@ -1199,8 +1203,10 @@ static inline int drbg_alloc_state(struct drbg_state *drbg) if (0 < sb_size) { drbg->scratchpadbuf = kzalloc(sb_size + ret, GFP_KERNEL); - if (!drbg->scratchpadbuf) + if (!drbg->scratchpadbuf) { + ret = -ENOMEM; goto fini; + } drbg->scratchpad = PTR_ALIGN(drbg->scratchpadbuf, ret + 1); } @@ -1999,7 +2005,7 @@ static int __init drbg_init(void) { unsigned int i = 0; /* pointer to drbg_algs */ unsigned int j = 0; /* pointer to drbg_cores */ - int ret = -EFAULT; + int ret; ret = drbg_healthcheck_sanity(); if (ret) @@ -2009,7 +2015,7 @@ static int __init drbg_init(void) pr_info("DRBG: Cannot register all DRBG types" "(slots needed: %zu, slots available: %zu)\n", ARRAY_SIZE(drbg_cores) * 2, ARRAY_SIZE(drbg_algs)); - return ret; + return -EFAULT; } /* |