[PATCH] crypto: fix asymmetric private session variable size

[Ciara Power]

When creating the asymmetric session mempool, the maximum private
session size of all devices is used when creating the mempool
object size.
The return value for ``rte_cryptodev_asym_get_private_session_size``
is unsigned int, whereas the variable was uint8_t, leading to a
possible overflow issue.

To fix this, the variable for private session size is now changed to
unsigned int to match the function return type.

Fixes: 1f1e4b7cbaad ("cryptodev: use single mempool for asymmetric session")
Reported-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>

Signed-off-by: Ciara Power <ciara.power at intel.com>
---
 lib/cryptodev/rte_cryptodev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/cryptodev/rte_cryptodev.c b/lib/cryptodev/rte_cryptodev.c
index 727d271fb9..d262ae6ffa 100644
--- a/lib/cryptodev/rte_cryptodev.c
+++ b/lib/cryptodev/rte_cryptodev.c
@@ -1810,7 +1810,8 @@ rte_cryptodev_asym_session_pool_create(const char *name, uint32_t nb_elts,
 	struct rte_mempool *mp;
 	struct rte_cryptodev_asym_session_pool_private_data *pool_priv;
 	uint32_t obj_sz, obj_sz_aligned;
-	uint8_t dev_id, priv_sz, max_priv_sz = 0;
+	uint8_t dev_id;
+	unsigned int priv_sz, max_priv_sz = 0;
 
 	for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++)
 		if (rte_cryptodev_is_valid_dev(dev_id)) {
-- 
2.25.1