diff options
| author | LABBE Corentin <clabbe.montjoie@gmail.com> | 2015-11-04 21:13:39 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-11-17 22:00:38 +0800 |
| commit | 7aff7d0abc83b0991e83af3c43f0d0df47e7c3bf (patch) | |
| tree | 091d87783b34b2da6e7237a6ec9db92c077295aa /drivers/crypto/amcc | |
| parent | f9970c2865d300bd0bb4ba006a0283a8ffa51ada (diff) | |
crypto: amcc - check return value of sg_nents_for_len
The sg_nents_for_len() function could fail, this patch add a check for
its return value.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/amcc')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c index 58a630e55d5d..62134c8a2260 100644 --- a/drivers/crypto/amcc/crypto4xx_core.c +++ b/drivers/crypto/amcc/crypto4xx_core.c @@ -781,6 +781,10 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req, /* figure how many gd is needed */ num_gd = sg_nents_for_len(src, datalen); + if ((int)num_gd < 0) { + dev_err(dev->core_dev->device, "Invalid number of src SG.\n"); + return -EINVAL; + } if (num_gd == 1) num_gd = 0; |