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crypto: rsa-pkcs1pad - Always use GFP_KERNEL

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We don't currently support using akcipher in atomic contexts,
so GFP_KERNEL should always be used.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2016-06-29 19:32:26 +08:00
parent 0f2c83190b
commit 3a32ce507a
1 changed files with 6 additions and 16 deletions
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22
crypto/rsa-pkcs1pad.c
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@ -260,8 +260,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
req_ctx->child_req.dst_len = ctx->key_size; req_ctx->child_req.dst_len = ctx->key_size;
req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len, req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL);
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->in_buf) if (!req_ctx->in_buf)
return -ENOMEM; return -ENOMEM;
@ -274,9 +273,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf, pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
ctx->key_size - 1 - req->src_len, req->src); ctx->key_size - 1 - req->src_len, req->src);
req_ctx->out_buf = kmalloc(ctx->key_size, req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->out_buf) { if (!req_ctx->out_buf) {
kfree(req_ctx->in_buf); kfree(req_ctx->in_buf);
return -ENOMEM; return -ENOMEM;
@ -379,9 +376,7 @@ static int pkcs1pad_decrypt(struct akcipher_request *req)
req_ctx->child_req.dst = req_ctx->out_sg; req_ctx->child_req.dst = req_ctx->out_sg;
req_ctx->child_req.dst_len = ctx->key_size ; req_ctx->child_req.dst_len = ctx->key_size ;
req_ctx->out_buf = kmalloc(ctx->key_size, req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->out_buf) if (!req_ctx->out_buf)
return -ENOMEM; return -ENOMEM;
@ -438,8 +433,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
req_ctx->child_req.dst_len = ctx->key_size; req_ctx->child_req.dst_len = ctx->key_size;
req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len, req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL);
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->in_buf) if (!req_ctx->in_buf)
return -ENOMEM; return -ENOMEM;
@ -454,9 +448,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf, pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
ctx->key_size - 1 - req->src_len, req->src); ctx->key_size - 1 - req->src_len, req->src);
req_ctx->out_buf = kmalloc(ctx->key_size, req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->out_buf) { if (!req_ctx->out_buf) {
kfree(req_ctx->in_buf); kfree(req_ctx->in_buf);
return -ENOMEM; return -ENOMEM;
@ -577,9 +569,7 @@ static int pkcs1pad_verify(struct akcipher_request *req)
req_ctx->child_req.dst = req_ctx->out_sg; req_ctx->child_req.dst = req_ctx->out_sg;
req_ctx->child_req.dst_len = ctx->key_size; req_ctx->child_req.dst_len = ctx->key_size;
req_ctx->out_buf = kmalloc(ctx->key_size, req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
if (!req_ctx->out_buf) if (!req_ctx->out_buf)
return -ENOMEM; return -ENOMEM;