diff --git a/arch/arm/crypto/aesbs-glue.c b/arch/arm/crypto/aesbs-glue.c index 648d5fac9cbf..3271c836e1a1 100644 --- a/arch/arm/crypto/aesbs-glue.c +++ b/arch/arm/crypto/aesbs-glue.c @@ -259,6 +259,8 @@ static int aesbs_xts_encrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE); + if (err) + return err; /* generate the initial tweak */ AES_encrypt(walk.iv, walk.iv, &ctx->twkey); @@ -283,6 +285,8 @@ static int aesbs_xts_decrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE); + if (err) + return err; /* generate the initial tweak */ AES_encrypt(walk.iv, walk.iv, &ctx->twkey);