diff options
Diffstat (limited to 'drivers/crypto/nx/nx-aes-xcbc.c')
| -rw-r--r-- | drivers/crypto/nx/nx-aes-xcbc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/crypto/nx/nx-aes-xcbc.c b/drivers/crypto/nx/nx-aes-xcbc.c index 93923e4628c0..658da0fd3e1f 100644 --- a/drivers/crypto/nx/nx-aes-xcbc.c +++ b/drivers/crypto/nx/nx-aes-xcbc.c @@ -89,8 +89,11 @@ static int nx_xcbc_update(struct shash_desc *desc, struct nx_csbcpb *csbcpb = nx_ctx->csbcpb; struct nx_sg *in_sg; u32 to_process, leftover; + unsigned long irq_flags; int rc = 0; + spin_lock_irqsave(&nx_ctx->lock, irq_flags); + if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { /* we've hit the nx chip previously and we're updating again, * so copy over the partial digest */ @@ -158,6 +161,7 @@ static int nx_xcbc_update(struct shash_desc *desc, /* everything after the first update is continuation */ NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; out: + spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return rc; } @@ -167,8 +171,11 @@ static int nx_xcbc_final(struct shash_desc *desc, u8 *out) struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); struct nx_csbcpb *csbcpb = nx_ctx->csbcpb; struct nx_sg *in_sg, *out_sg; + unsigned long irq_flags; int rc = 0; + spin_lock_irqsave(&nx_ctx->lock, irq_flags); + if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { /* we've hit the nx chip previously, now we're finalizing, * so copy over the partial digest */ @@ -211,6 +218,7 @@ static int nx_xcbc_final(struct shash_desc *desc, u8 *out) memcpy(out, csbcpb->cpb.aes_xcbc.out_cv_mac, AES_BLOCK_SIZE); out: + spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return rc; } |