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Diffstat (limited to 'arch/s390/crypto/des_s390.c')
-rw-r--r--arch/s390/crypto/des_s390.c330
1 files changed, 145 insertions, 185 deletions
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index 697e71a75fc2..8b83144206eb 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -27,6 +27,8 @@
static u8 *ctrblk;
static DEFINE_SPINLOCK(ctrblk_lock);
+static cpacf_mask_t km_functions, kmc_functions, kmctr_functions;
+
struct s390_des_ctx {
u8 iv[DES_BLOCK_SIZE];
u8 key[DES3_KEY_SIZE];
@@ -36,12 +38,12 @@ static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int key_len)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
u32 tmp[DES_EXPKEY_WORDS];
/* check for weak keys */
- if (!des_ekey(tmp, key) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
- *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ if (!des_ekey(tmp, key) &&
+ (tfm->crt_flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
+ tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
@@ -53,14 +55,15 @@ static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- cpacf_km(CPACF_KM_DEA_ENC, ctx->key, out, in, DES_BLOCK_SIZE);
+ cpacf_km(CPACF_KM_DEA, ctx->key, out, in, DES_BLOCK_SIZE);
}
static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- cpacf_km(CPACF_KM_DEA_DEC, ctx->key, out, in, DES_BLOCK_SIZE);
+ cpacf_km(CPACF_KM_DEA | CPACF_DECRYPT,
+ ctx->key, out, in, DES_BLOCK_SIZE);
}
static struct crypto_alg des_alg = {
@@ -82,61 +85,46 @@ static struct crypto_alg des_alg = {
}
};
-static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
- u8 *key, struct blkcipher_walk *walk)
+static int ecb_desall_crypt(struct blkcipher_desc *desc, unsigned long fc,
+ struct blkcipher_walk *walk)
{
- int ret = blkcipher_walk_virt(desc, walk);
- unsigned int nbytes;
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ unsigned int nbytes, n;
+ int ret;
- while ((nbytes = walk->nbytes)) {
+ ret = blkcipher_walk_virt(desc, walk);
+ while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
/* only use complete blocks */
- unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
- 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;
-
- nbytes &= DES_BLOCK_SIZE - 1;
- ret = blkcipher_walk_done(desc, walk, nbytes);
+ n = nbytes & ~(DES_BLOCK_SIZE - 1);
+ cpacf_km(fc, ctx->key, walk->dst.virt.addr,
+ walk->src.virt.addr, n);
+ ret = blkcipher_walk_done(desc, walk, nbytes - n);
}
-
return ret;
}
-static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
+static int cbc_desall_crypt(struct blkcipher_desc *desc, unsigned long fc,
struct blkcipher_walk *walk)
{
struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- int ret = blkcipher_walk_virt(desc, walk);
- unsigned int nbytes = walk->nbytes;
+ unsigned int nbytes, n;
+ int ret;
struct {
u8 iv[DES_BLOCK_SIZE];
u8 key[DES3_KEY_SIZE];
} param;
- if (!nbytes)
- goto out;
-
+ ret = blkcipher_walk_virt(desc, walk);
memcpy(param.iv, walk->iv, DES_BLOCK_SIZE);
memcpy(param.key, ctx->key, DES3_KEY_SIZE);
- do {
+ while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
/* only use complete blocks */
- unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
- u8 *out = walk->dst.virt.addr;
- u8 *in = walk->src.virt.addr;
-
- ret = cpacf_kmc(func, &param, out, in, n);
- if (ret < 0 || ret != n)
- return -EIO;
-
- nbytes &= DES_BLOCK_SIZE - 1;
- ret = blkcipher_walk_done(desc, walk, nbytes);
- } while ((nbytes = walk->nbytes));
+ n = nbytes & ~(DES_BLOCK_SIZE - 1);
+ cpacf_kmc(fc, &param, walk->dst.virt.addr,
+ walk->src.virt.addr, n);
+ ret = blkcipher_walk_done(desc, walk, nbytes - n);
+ }
memcpy(walk->iv, param.iv, DES_BLOCK_SIZE);
-
-out:
return ret;
}
@@ -144,22 +132,20 @@ static int ecb_des_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, CPACF_KM_DEA_ENC, ctx->key, &walk);
+ return ecb_desall_crypt(desc, CPACF_KM_DEA, &walk);
}
static int ecb_des_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, CPACF_KM_DEA_DEC, ctx->key, &walk);
+ return ecb_desall_crypt(desc, CPACF_KM_DEA | CPACF_DECRYPT, &walk);
}
static struct crypto_alg ecb_des_alg = {
@@ -189,7 +175,7 @@ static int cbc_des_encrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, CPACF_KMC_DEA_ENC, &walk);
+ return cbc_desall_crypt(desc, CPACF_KMC_DEA, &walk);
}
static int cbc_des_decrypt(struct blkcipher_desc *desc,
@@ -199,7 +185,7 @@ static int cbc_des_decrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, CPACF_KMC_DEA_DEC, &walk);
+ return cbc_desall_crypt(desc, CPACF_KMC_DEA | CPACF_DECRYPT, &walk);
}
static struct crypto_alg cbc_des_alg = {
@@ -240,13 +226,12 @@ static int des3_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int key_len)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
if (!(crypto_memneq(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
crypto_memneq(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
DES_KEY_SIZE)) &&
- (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
- *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ (tfm->crt_flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
+ tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
memcpy(ctx->key, key, key_len);
@@ -257,14 +242,15 @@ static void des3_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- cpacf_km(CPACF_KM_TDEA_192_ENC, ctx->key, dst, src, DES_BLOCK_SIZE);
+ cpacf_km(CPACF_KM_TDEA_192, ctx->key, dst, src, DES_BLOCK_SIZE);
}
static void des3_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- cpacf_km(CPACF_KM_TDEA_192_DEC, ctx->key, dst, src, DES_BLOCK_SIZE);
+ cpacf_km(CPACF_KM_TDEA_192 | CPACF_DECRYPT,
+ ctx->key, dst, src, DES_BLOCK_SIZE);
}
static struct crypto_alg des3_alg = {
@@ -290,22 +276,21 @@ static int ecb_des3_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, CPACF_KM_TDEA_192_ENC, ctx->key, &walk);
+ return ecb_desall_crypt(desc, CPACF_KM_TDEA_192, &walk);
}
static int ecb_des3_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, CPACF_KM_TDEA_192_DEC, ctx->key, &walk);
+ return ecb_desall_crypt(desc, CPACF_KM_TDEA_192 | CPACF_DECRYPT,
+ &walk);
}
static struct crypto_alg ecb_des3_alg = {
@@ -335,7 +320,7 @@ static int cbc_des3_encrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, CPACF_KMC_TDEA_192_ENC, &walk);
+ return cbc_desall_crypt(desc, CPACF_KMC_TDEA_192, &walk);
}
static int cbc_des3_decrypt(struct blkcipher_desc *desc,
@@ -345,7 +330,8 @@ static int cbc_des3_decrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, CPACF_KMC_TDEA_192_DEC, &walk);
+ return cbc_desall_crypt(desc, CPACF_KMC_TDEA_192 | CPACF_DECRYPT,
+ &walk);
}
static struct crypto_alg cbc_des3_alg = {
@@ -369,81 +355,54 @@ static struct crypto_alg cbc_des3_alg = {
}
};
-static unsigned int __ctrblk_init(u8 *ctrptr, unsigned int nbytes)
+static unsigned int __ctrblk_init(u8 *ctrptr, u8 *iv, unsigned int nbytes)
{
unsigned int i, n;
/* align to block size, max. PAGE_SIZE */
n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(DES_BLOCK_SIZE - 1);
- for (i = DES_BLOCK_SIZE; i < n; i += DES_BLOCK_SIZE) {
- memcpy(ctrptr + i, ctrptr + i - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
- crypto_inc(ctrptr + i, DES_BLOCK_SIZE);
+ memcpy(ctrptr, iv, DES_BLOCK_SIZE);
+ for (i = (n / DES_BLOCK_SIZE) - 1; i > 0; i--) {
+ memcpy(ctrptr + DES_BLOCK_SIZE, ctrptr, DES_BLOCK_SIZE);
+ crypto_inc(ctrptr + DES_BLOCK_SIZE, DES_BLOCK_SIZE);
+ ctrptr += DES_BLOCK_SIZE;
}
return n;
}
-static int ctr_desall_crypt(struct blkcipher_desc *desc, long func,
- struct s390_des_ctx *ctx,
+static int ctr_desall_crypt(struct blkcipher_desc *desc, unsigned long fc,
struct blkcipher_walk *walk)
{
- int ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ u8 buf[DES_BLOCK_SIZE], *ctrptr;
unsigned int n, nbytes;
- u8 buf[DES_BLOCK_SIZE], ctrbuf[DES_BLOCK_SIZE];
- u8 *out, *in, *ctrptr = ctrbuf;
-
- if (!walk->nbytes)
- return ret;
+ int ret, locked;
- if (spin_trylock(&ctrblk_lock))
- ctrptr = ctrblk;
+ locked = spin_trylock(&ctrblk_lock);
- memcpy(ctrptr, walk->iv, DES_BLOCK_SIZE);
+ ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
- out = walk->dst.virt.addr;
- in = walk->src.virt.addr;
- while (nbytes >= DES_BLOCK_SIZE) {
- if (ctrptr == ctrblk)
- 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;
- }
- if (n > DES_BLOCK_SIZE)
- memcpy(ctrptr, ctrptr + n - DES_BLOCK_SIZE,
- DES_BLOCK_SIZE);
- crypto_inc(ctrptr, DES_BLOCK_SIZE);
- out += n;
- in += n;
- nbytes -= n;
- }
- ret = blkcipher_walk_done(desc, walk, nbytes);
+ n = DES_BLOCK_SIZE;
+ if (nbytes >= 2*DES_BLOCK_SIZE && locked)
+ n = __ctrblk_init(ctrblk, walk->iv, nbytes);
+ ctrptr = (n > DES_BLOCK_SIZE) ? ctrblk : walk->iv;
+ cpacf_kmctr(fc, ctx->key, walk->dst.virt.addr,
+ walk->src.virt.addr, n, ctrptr);
+ if (ctrptr == ctrblk)
+ memcpy(walk->iv, ctrptr + n - DES_BLOCK_SIZE,
+ DES_BLOCK_SIZE);
+ crypto_inc(walk->iv, DES_BLOCK_SIZE);
+ ret = blkcipher_walk_done(desc, walk, nbytes - n);
}
- if (ctrptr == ctrblk) {
- if (nbytes)
- memcpy(ctrbuf, ctrptr, DES_BLOCK_SIZE);
- else
- memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE);
+ if (locked)
spin_unlock(&ctrblk_lock);
- } else {
- if (!nbytes)
- memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE);
- }
/* final block may be < DES_BLOCK_SIZE, copy only nbytes */
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;
- memcpy(out, buf, nbytes);
- crypto_inc(ctrbuf, DES_BLOCK_SIZE);
+ cpacf_kmctr(fc, ctx->key, buf, walk->src.virt.addr,
+ DES_BLOCK_SIZE, walk->iv);
+ memcpy(walk->dst.virt.addr, buf, nbytes);
+ crypto_inc(walk->iv, DES_BLOCK_SIZE);
ret = blkcipher_walk_done(desc, walk, 0);
- memcpy(walk->iv, ctrbuf, DES_BLOCK_SIZE);
}
return ret;
}
@@ -452,22 +411,20 @@ static int ctr_des_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ctr_desall_crypt(desc, CPACF_KMCTR_DEA_ENC, ctx, &walk);
+ return ctr_desall_crypt(desc, CPACF_KMCTR_DEA, &walk);
}
static int ctr_des_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ctr_desall_crypt(desc, CPACF_KMCTR_DEA_DEC, ctx, &walk);
+ return ctr_desall_crypt(desc, CPACF_KMCTR_DEA | CPACF_DECRYPT, &walk);
}
static struct crypto_alg ctr_des_alg = {
@@ -495,22 +452,21 @@ static int ctr_des3_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ctr_desall_crypt(desc, CPACF_KMCTR_TDEA_192_ENC, ctx, &walk);
+ return ctr_desall_crypt(desc, CPACF_KMCTR_TDEA_192, &walk);
}
static int ctr_des3_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ctr_desall_crypt(desc, CPACF_KMCTR_TDEA_192_DEC, ctx, &walk);
+ return ctr_desall_crypt(desc, CPACF_KMCTR_TDEA_192 | CPACF_DECRYPT,
+ &walk);
}
static struct crypto_alg ctr_des3_alg = {
@@ -534,83 +490,87 @@ static struct crypto_alg ctr_des3_alg = {
}
};
+static struct crypto_alg *des_s390_algs_ptr[8];
+static int des_s390_algs_num;
+
+static int des_s390_register_alg(struct crypto_alg *alg)
+{
+ int ret;
+
+ ret = crypto_register_alg(alg);
+ if (!ret)
+ des_s390_algs_ptr[des_s390_algs_num++] = alg;
+ return ret;
+}
+
+static void des_s390_exit(void)
+{
+ while (des_s390_algs_num--)
+ crypto_unregister_alg(des_s390_algs_ptr[des_s390_algs_num]);
+ if (ctrblk)
+ free_page((unsigned long) ctrblk);
+}
+
static int __init des_s390_init(void)
{
int ret;
- if (!cpacf_query(CPACF_KM, CPACF_KM_DEA_ENC) ||
- !cpacf_query(CPACF_KM, CPACF_KM_TDEA_192_ENC))
- return -EOPNOTSUPP;
-
- ret = crypto_register_alg(&des_alg);
- if (ret)
- goto des_err;
- ret = crypto_register_alg(&ecb_des_alg);
- if (ret)
- goto ecb_des_err;
- ret = crypto_register_alg(&cbc_des_alg);
- if (ret)
- goto cbc_des_err;
- ret = crypto_register_alg(&des3_alg);
- if (ret)
- goto des3_err;
- ret = crypto_register_alg(&ecb_des3_alg);
- if (ret)
- goto ecb_des3_err;
- ret = crypto_register_alg(&cbc_des3_alg);
- if (ret)
- goto cbc_des3_err;
-
- if (cpacf_query(CPACF_KMCTR, CPACF_KMCTR_DEA_ENC) &&
- cpacf_query(CPACF_KMCTR, CPACF_KMCTR_TDEA_192_ENC)) {
- ret = crypto_register_alg(&ctr_des_alg);
+ /* Query available functions for KM, KMC and KMCTR */
+ cpacf_query(CPACF_KM, &km_functions);
+ cpacf_query(CPACF_KMC, &kmc_functions);
+ cpacf_query(CPACF_KMCTR, &kmctr_functions);
+
+ if (cpacf_test_func(&km_functions, CPACF_KM_DEA)) {
+ ret = des_s390_register_alg(&des_alg);
+ if (ret)
+ goto out_err;
+ ret = des_s390_register_alg(&ecb_des_alg);
if (ret)
- goto ctr_des_err;
- ret = crypto_register_alg(&ctr_des3_alg);
+ goto out_err;
+ }
+ if (cpacf_test_func(&kmc_functions, CPACF_KMC_DEA)) {
+ ret = des_s390_register_alg(&cbc_des_alg);
if (ret)
- goto ctr_des3_err;
+ goto out_err;
+ }
+ if (cpacf_test_func(&km_functions, CPACF_KM_TDEA_192)) {
+ ret = des_s390_register_alg(&des3_alg);
+ if (ret)
+ goto out_err;
+ ret = des_s390_register_alg(&ecb_des3_alg);
+ if (ret)
+ goto out_err;
+ }
+ if (cpacf_test_func(&kmc_functions, CPACF_KMC_TDEA_192)) {
+ ret = des_s390_register_alg(&cbc_des3_alg);
+ if (ret)
+ goto out_err;
+ }
+
+ if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_DEA) ||
+ cpacf_test_func(&kmctr_functions, CPACF_KMCTR_TDEA_192)) {
ctrblk = (u8 *) __get_free_page(GFP_KERNEL);
if (!ctrblk) {
ret = -ENOMEM;
- goto ctr_mem_err;
+ goto out_err;
}
}
-out:
- return ret;
-ctr_mem_err:
- crypto_unregister_alg(&ctr_des3_alg);
-ctr_des3_err:
- crypto_unregister_alg(&ctr_des_alg);
-ctr_des_err:
- crypto_unregister_alg(&cbc_des3_alg);
-cbc_des3_err:
- crypto_unregister_alg(&ecb_des3_alg);
-ecb_des3_err:
- crypto_unregister_alg(&des3_alg);
-des3_err:
- crypto_unregister_alg(&cbc_des_alg);
-cbc_des_err:
- crypto_unregister_alg(&ecb_des_alg);
-ecb_des_err:
- crypto_unregister_alg(&des_alg);
-des_err:
- goto out;
-}
-
-static void __exit des_s390_exit(void)
-{
- if (ctrblk) {
- crypto_unregister_alg(&ctr_des_alg);
- crypto_unregister_alg(&ctr_des3_alg);
- free_page((unsigned long) ctrblk);
+ if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_DEA)) {
+ ret = des_s390_register_alg(&ctr_des_alg);
+ if (ret)
+ goto out_err;
+ }
+ if (cpacf_test_func(&kmctr_functions, CPACF_KMCTR_TDEA_192)) {
+ ret = des_s390_register_alg(&ctr_des3_alg);
+ if (ret)
+ goto out_err;
}
- crypto_unregister_alg(&cbc_des3_alg);
- crypto_unregister_alg(&ecb_des3_alg);
- crypto_unregister_alg(&des3_alg);
- crypto_unregister_alg(&cbc_des_alg);
- crypto_unregister_alg(&ecb_des_alg);
- crypto_unregister_alg(&des_alg);
+
+ return 0;
+out_err:
+ des_s390_exit();
+ return ret;
}
module_cpu_feature_match(MSA, des_s390_init);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-30 08:48:54 +0300