diff options
Diffstat (limited to 'arch/s390/crypto/des_s390.c')
| -rw-r--r-- | arch/s390/crypto/des_s390.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index fadd474bf8bb..999878597331 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -95,9 +95,7 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func, u8 *out = walk->dst.virt.addr; u8 *in = walk->src.virt.addr; - ret = cpacf_km(func, key, out, in, n); - if (ret < 0 || ret != n) - return -EIO; + cpacf_km(func, key, out, in, n); nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -128,9 +126,7 @@ static int cbc_desall_crypt(struct blkcipher_desc *desc, long func, u8 *out = walk->dst.virt.addr; u8 *in = walk->src.virt.addr; - ret = cpacf_kmc(func, ¶m, out, in, n); - if (ret < 0 || ret != n) - return -EIO; + cpacf_kmc(func, ¶m, out, in, n); nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -411,12 +407,7 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, n = __ctrblk_init(ctrptr, nbytes); else n = DES_BLOCK_SIZE; - ret = cpacf_kmctr(func, ctx->key, out, in, n, ctrptr); - if (ret < 0 || ret != n) { - if (ctrptr == ctrblk) - spin_unlock(&ctrblk_lock); - return -EIO; - } + cpacf_kmctr(func, ctx->key, out, in, n, ctrptr); if (n > DES_BLOCK_SIZE) memcpy(ctrptr, ctrptr + n - DES_BLOCK_SIZE, DES_BLOCK_SIZE); @@ -441,10 +432,7 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, if (nbytes) { out = walk->dst.virt.addr; in = walk->src.virt.addr; - ret = cpacf_kmctr(func, ctx->key, buf, in, - DES_BLOCK_SIZE, ctrbuf); - if (ret < 0 || ret != DES_BLOCK_SIZE) - return -EIO; + cpacf_kmctr(func, ctx->key, buf, in, DES_BLOCK_SIZE, ctrbuf); memcpy(out, buf, nbytes); crypto_inc(ctrbuf, DES_BLOCK_SIZE); ret = blkcipher_walk_done(desc, walk, 0); |