[SRU][J][PATCH] crypto: rsa-pkcs1pad - Use helper to set reqsize

[Timo Aaltonen]

From: Herbert Xu <herbert at gondor.apana.org.au>

BugLink: https://bugs.launchpad.net/bugs/2034447

The value of reqsize must only be changed through the helper.

Signed-off-by: Herbert Xu <herbert at gondor.apana.org.au>
(cherry picked from commit 5b11d1a360ea23c80c6d4ec3f5986a788d0a0995)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 crypto/rsa-pkcs1pad.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index a4ebbb889274e..e2f4ccbd71dd8 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -574,6 +574,10 @@ static int pkcs1pad_init_tfm(struct crypto_akcipher *tfm)
 		return PTR_ERR(child_tfm);
 
 	ctx->child = child_tfm;
+
+	akcipher_set_reqsize(tfm, sizeof(struct pkcs1pad_request) +
+				  crypto_akcipher_reqsize(child_tfm));
+
 	return 0;
 }
 
@@ -669,7 +673,6 @@ static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
 	inst->alg.set_pub_key = pkcs1pad_set_pub_key;
 	inst->alg.set_priv_key = pkcs1pad_set_priv_key;
 	inst->alg.max_size = pkcs1pad_get_max_size;
-	inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize;
 
 	inst->free = pkcs1pad_free;
 
-- 
2.39.2