diff options
| -rw-r--r-- | drivers/crypto/hifn_795x.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c index 4428e8e68a0..366e974d0e5 100644 --- a/drivers/crypto/hifn_795x.c +++ b/drivers/crypto/hifn_795x.c @@ -1433,7 +1433,7 @@ static int ablkcipher_add(void *daddr, unsigned int *drestp, struct scatterlist return -EINVAL; while (size) { - copy = min(drest, src->length); + copy = min(drest, min(size, src->length)); saddr = kmap_atomic(sg_page(src), KM_SOFTIRQ1); memcpy(daddr, saddr + src->offset, copy); @@ -1482,7 +1482,7 @@ static int ablkcipher_walk(struct ablkcipher_request *req, if (!IS_ALIGNED(dst->offset, HIFN_D_DST_DALIGN) || !IS_ALIGNED(dst->length, HIFN_D_DST_DALIGN) || offset) { - unsigned slen = src->length - offset; + unsigned slen = min(src->length - offset, nbytes); unsigned dlen = PAGE_SIZE; t = &w->cache[idx]; @@ -1540,7 +1540,7 @@ static int ablkcipher_walk(struct ablkcipher_request *req, kunmap_atomic(daddr, KM_SOFTIRQ0); } else { - nbytes -= src->length; + nbytes -= min(src->length, nbytes); idx++; } @@ -1559,7 +1559,7 @@ static int hifn_setup_session(struct ablkcipher_request *req) struct hifn_context *ctx = crypto_tfm_ctx(req->base.tfm); struct hifn_device *dev = ctx->dev; struct page *spage, *dpage; - unsigned long soff, doff, flags; + unsigned long soff, doff, dlen, flags; unsigned int nbytes = req->nbytes, idx = 0, len; int err = -EINVAL, sg_num; struct scatterlist *src, *dst, *t; @@ -1571,12 +1571,13 @@ static int hifn_setup_session(struct ablkcipher_request *req) while (nbytes) { dst = &req->dst[idx]; + dlen = min(dst->length, nbytes); if (!IS_ALIGNED(dst->offset, HIFN_D_DST_DALIGN) || - !IS_ALIGNED(dst->length, HIFN_D_DST_DALIGN)) + !IS_ALIGNED(dlen, HIFN_D_DST_DALIGN)) ctx->walk.flags |= ASYNC_FLAGS_MISALIGNED; - nbytes -= dst->length; + nbytes -= dlen; idx++; } @@ -1631,7 +1632,7 @@ static int hifn_setup_session(struct ablkcipher_request *req) if (err) goto err_out; - nbytes -= len; + nbytes -= min(len, nbytes); } dev->active = HIFN_DEFAULT_ACTIVE_NUM; @@ -1736,8 +1737,7 @@ static int ablkcipher_get(void *saddr, unsigned int *srestp, unsigned int offset return -EINVAL; while (size) { - - copy = min(dst->length, srest); + copy = min(srest, min(dst->length, size)); daddr = kmap_atomic(sg_page(dst), KM_IRQ0); memcpy(daddr + dst->offset + offset, saddr, copy); @@ -1794,7 +1794,7 @@ static void hifn_process_ready(struct ablkcipher_request *req, int error) sg_page(dst), dst->length, nbytes); if (!t->length) { - nbytes -= dst->length; + nbytes -= min(dst->length, nbytes); idx++; continue; } |