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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>
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@herbertx
herbertx committed Jul 1, 2016
1 parent 0f2c831 commit 3a32ce5
Showing 1 changed file with 6 additions and 16 deletions.
22 changes: 6 additions & 16 deletions crypto/rsa-pkcs1pad.c
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Original file line number Diff line number Diff line change
Expand Up @@ -260,8 +260,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
req_ctx->child_req.dst_len = ctx->key_size;

req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
GFP_KERNEL);
if (!req_ctx->in_buf)
return -ENOMEM;

Expand All @@ -274,9 +273,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
ctx->key_size - 1 - req->src_len, req->src);

req_ctx->out_buf = kmalloc(ctx->key_size,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
if (!req_ctx->out_buf) {
kfree(req_ctx->in_buf);
return -ENOMEM;
Expand Down Expand Up @@ -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_len = ctx->key_size ;

req_ctx->out_buf = kmalloc(ctx->key_size,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
if (!req_ctx->out_buf)
return -ENOMEM;

Expand Down Expand Up @@ -438,8 +433,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
req_ctx->child_req.dst_len = ctx->key_size;

req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
GFP_KERNEL);
if (!req_ctx->in_buf)
return -ENOMEM;

Expand All @@ -454,9 +448,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
ctx->key_size - 1 - req->src_len, req->src);

req_ctx->out_buf = kmalloc(ctx->key_size,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
if (!req_ctx->out_buf) {
kfree(req_ctx->in_buf);
return -ENOMEM;
Expand Down Expand Up @@ -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_len = ctx->key_size;

req_ctx->out_buf = kmalloc(ctx->key_size,
(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC);
req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
if (!req_ctx->out_buf)
return -ENOMEM;

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