3 files changed, 19 insertions, 8 deletions

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 5bb950182026..910d6751644c 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -170,6 +170,7 @@ dma_iv_error:
 	while (i >= 0) {
 		dma_unmap_single(ss->dev, rctx->p_iv[i], ivsize, DMA_TO_DEVICE);
 		memzero_explicit(sf->iv[i], ivsize);
+		i--;
 	}
 	return err;
 }
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
index 98593a0cff69..ac2329e2b0e5 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
@@ -528,25 +528,33 @@ static int allocate_flows(struct sun8i_ss_dev *ss)
 
 		ss->flows[i].biv = devm_kmalloc(ss->dev, AES_BLOCK_SIZE,
 						GFP_KERNEL | GFP_DMA);
-		if (!ss->flows[i].biv)
+		if (!ss->flows[i].biv) {
+			err = -ENOMEM;
 			goto error_engine;
+		}
 
 		for (j = 0; j < MAX_SG; j++) {
 			ss->flows[i].iv[j] = devm_kmalloc(ss->dev, AES_BLOCK_SIZE,
 							  GFP_KERNEL | GFP_DMA);
-			if (!ss->flows[i].iv[j])
+			if (!ss->flows[i].iv[j]) {
+				err = -ENOMEM;
 				goto error_engine;
+			}
 		}
 
 		/* the padding could be up to two block. */
 		ss->flows[i].pad = devm_kmalloc(ss->dev, MAX_PAD_SIZE,
 						GFP_KERNEL | GFP_DMA);
-		if (!ss->flows[i].pad)
+		if (!ss->flows[i].pad) {
+			err = -ENOMEM;
 			goto error_engine;
+		}
 		ss->flows[i].result = devm_kmalloc(ss->dev, SHA256_DIGEST_SIZE,
 						   GFP_KERNEL | GFP_DMA);
-		if (!ss->flows[i].result)
+		if (!ss->flows[i].result) {
+			err = -ENOMEM;
 			goto error_engine;
+		}
 
 		ss->flows[i].engine = crypto_engine_alloc_init(ss->dev, true);
 		if (!ss->flows[i].engine) {
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index ac417a6b39e5..36a82b22953c 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -30,8 +30,8 @@ static int sun8i_ss_hashkey(struct sun8i_ss_hash_tfm_ctx *tfmctx, const u8 *key,
 	int ret = 0;
 
 	xtfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_NEED_FALLBACK);
-	if (!xtfm)
-		return -ENOMEM;
+	if (IS_ERR(xtfm))
+		return PTR_ERR(xtfm);
 
 	len = sizeof(*sdesc) + crypto_shash_descsize(xtfm);
 	sdesc = kmalloc(len, GFP_KERNEL);
@@ -586,7 +586,8 @@ retry:
 			rctx->t_dst[k + 1].len = rctx->t_dst[k].len;
 		}
 		addr_xpad = dma_map_single(ss->dev, tfmctx->ipad, bs, DMA_TO_DEVICE);
-		if (dma_mapping_error(ss->dev, addr_xpad)) {
+		err = dma_mapping_error(ss->dev, addr_xpad);
+		if (err) {
 			dev_err(ss->dev, "Fail to create DMA mapping of ipad\n");
 			goto err_dma_xpad;
 		}
@@ -612,7 +613,8 @@ retry:
 			goto err_dma_result;
 		}
 		addr_xpad = dma_map_single(ss->dev, tfmctx->opad, bs, DMA_TO_DEVICE);
-		if (dma_mapping_error(ss->dev, addr_xpad)) {
+		err = dma_mapping_error(ss->dev, addr_xpad);
+		if (err) {
 			dev_err(ss->dev, "Fail to create DMA mapping of opad\n");
 			goto err_dma_xpad;
 		}