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path: root/drivers/crypto/ccp/ccp-crypto-sha.c
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Diffstat (limited to 'drivers/crypto/ccp/ccp-crypto-sha.c')
-rw-r--r--drivers/crypto/ccp/ccp-crypto-sha.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c
index 507b34e0c..d14b3f28e 100644
--- a/drivers/crypto/ccp/ccp-crypto-sha.c
+++ b/drivers/crypto/ccp/ccp-crypto-sha.c
@@ -107,7 +107,15 @@ static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes,
sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);
sg = ccp_crypto_sg_table_add(&rctx->data_sg, &rctx->buf_sg);
+ if (!sg) {
+ ret = -EINVAL;
+ goto e_free;
+ }
sg = ccp_crypto_sg_table_add(&rctx->data_sg, req->src);
+ if (!sg) {
+ ret = -EINVAL;
+ goto e_free;
+ }
sg_mark_end(sg);
sg = rctx->data_sg.sgl;
@@ -142,6 +150,11 @@ static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes,
ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd);
return ret;
+
+e_free:
+ sg_free_table(&rctx->data_sg);
+
+ return ret;
}
static int ccp_sha_init(struct ahash_request *req)