[dpdk-stable] [PATCH] crypto/qat: fix allocation check and leak

[Yong Wang <wang.yong19@zte.com.cn>]

[ backported from upstream commit 963898f0e316611df9dc2964d059b4e16835b95a ]

There are several func calls to rte_zmalloc() which don't do null
point check on the return value. Fix it by adding null point check.

Fixes: 1703e94ac5ce ("qat: add driver for QuickAssist devices")
Cc: stable@dpdk.org

Signed-off-by: Yong Wang <wang.yong19@zte.com.cn>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/crypto/qat/qat_adf/qat_algs_build_desc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/crypto/qat/qat_adf/qat_algs_build_desc.c b/drivers/crypto/qat/qat_adf/qat_algs_build_desc.c
index 1c4b184..ac9d822 100644
--- a/drivers/crypto/qat/qat_adf/qat_algs_build_desc.c
+++ b/drivers/crypto/qat/qat_adf/qat_algs_build_desc.c
@@ -334,6 +334,11 @@ static int qat_alg_do_precomputes(enum icp_qat_hw_auth_algo hash_alg,
 
 		in = rte_zmalloc("working mem for key",
 				ICP_QAT_HW_AES_XCBC_MAC_STATE2_SZ, 16);
+		if (in == NULL) {
+			PMD_DRV_LOG(ERR, "Failed to alloc memory");
+			return -ENOMEM;
+		}
+
 		rte_memcpy(in, qat_aes_xcbc_key_seed,
 				ICP_QAT_HW_AES_XCBC_MAC_STATE2_SZ);
 		for (x = 0; x < HASH_XCBC_PRECOMP_KEY_NUM; x++) {
@@ -364,6 +369,11 @@ static int qat_alg_do_precomputes(enum icp_qat_hw_auth_algo hash_alg,
 				ICP_QAT_HW_GALOIS_E_CTR0_SZ);
 		in = rte_zmalloc("working mem for key",
 				ICP_QAT_HW_GALOIS_H_SZ, 16);
+		if (in == NULL) {
+			PMD_DRV_LOG(ERR, "Failed to alloc memory");
+			return -ENOMEM;
+		}
+
 		memset(in, 0, ICP_QAT_HW_GALOIS_H_SZ);
 		if (AES_set_encrypt_key(auth_key, auth_keylen << 3,
 			&enc_key) != 0) {
-- 
1.8.3.1