diff options
Diffstat (limited to 'drivers/crypto/hisilicon/sec2/sec_crypto.c')
| -rw-r--r-- | drivers/crypto/hisilicon/sec2/sec_crypto.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c index 074e50ef512c..6fcabbc87860 100644 --- a/drivers/crypto/hisilicon/sec2/sec_crypto.c +++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c @@ -104,6 +104,9 @@ #define IV_CTR_INIT 0x1 #define IV_BYTE_OFFSET 0x8 +static DEFINE_MUTEX(sec_algs_lock); +static unsigned int sec_available_devs; + struct sec_skcipher { u64 alg_msk; struct skcipher_alg alg; @@ -1011,6 +1014,7 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req, ret = sec_aead_mac_init(a_req); if (unlikely(ret)) { dev_err(dev, "fail to init mac data for ICV!\n"); + hisi_acc_sg_buf_unmap(dev, src, req->in); return ret; } } @@ -2544,16 +2548,31 @@ err: int sec_register_to_crypto(struct hisi_qm *qm) { u64 alg_mask = sec_get_alg_bitmap(qm, SEC_DRV_ALG_BITMAP_HIGH, SEC_DRV_ALG_BITMAP_LOW); - int ret; + int ret = 0; + + mutex_lock(&sec_algs_lock); + if (sec_available_devs) { + sec_available_devs++; + goto unlock; + } ret = sec_register_skcipher(alg_mask); if (ret) - return ret; + goto unlock; ret = sec_register_aead(alg_mask); if (ret) - sec_unregister_skcipher(alg_mask, ARRAY_SIZE(sec_skciphers)); + goto unreg_skcipher; + sec_available_devs++; + mutex_unlock(&sec_algs_lock); + + return 0; + +unreg_skcipher: + sec_unregister_skcipher(alg_mask, ARRAY_SIZE(sec_skciphers)); +unlock: + mutex_unlock(&sec_algs_lock); return ret; } @@ -2561,6 +2580,13 @@ void sec_unregister_from_crypto(struct hisi_qm *qm) { u64 alg_mask = sec_get_alg_bitmap(qm, SEC_DRV_ALG_BITMAP_HIGH, SEC_DRV_ALG_BITMAP_LOW); + mutex_lock(&sec_algs_lock); + if (--sec_available_devs) + goto unlock; + sec_unregister_aead(alg_mask, ARRAY_SIZE(sec_aeads)); sec_unregister_skcipher(alg_mask, ARRAY_SIZE(sec_skciphers)); + +unlock: + mutex_unlock(&sec_algs_lock); } |