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path: root/drivers/crypto
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Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/hifn_795x.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 4428e8e68a0d..366e974d0e59 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;
}