[dpdk-dev] [PATCH] cryptodev: fix PMD memory leak

[Fan Zhang]

This patch fixes the memory leak during queue pair release.
Originally the operation ring is not freed when releasing
queue pair, cause the next queue_pair configure call fail
and memory leak.

Fixes: eec136f3c54f ("aesni_gcm: add driver for AES-GCM crypto operations")
Fixes: cf7685d68f00 ("crypto/zuc: add driver for ZUC library")
Fixes: d61f70b4c918 ("crypto/libcrypto: add driver for OpenSSL library")
Fixes: 3aafc423cf4d ("snow3g: add driver for SNOW 3G library")

Cc: stable at dpdk.org

Signed-off-by: Fan Zhang <roy.fan.zhang at intel.com>
---
 drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c | 5 +++++
 drivers/crypto/openssl/rte_openssl_pmd_ops.c | 5 +++++
 drivers/crypto/snow3g/rte_snow3g_pmd_ops.c   | 5 +++++
 drivers/crypto/zuc/rte_zuc_pmd_ops.c         | 5 +++++
 4 files changed, 20 insertions(+)

diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
index 2f70f2a1a..bf69dde54 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
@@ -153,6 +153,11 @@ static int
 aesni_gcm_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 {
 	if (dev->data->queue_pairs[qp_id] != NULL) {
+		struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
+
+		if (qp->processed_pkts)
+			rte_ring_free(qp->processed_pkts);
+
 		rte_free(dev->data->queue_pairs[qp_id]);
 		dev->data->queue_pairs[qp_id] = NULL;
 	}
diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index 5644f593a..40217cf0d 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -657,6 +657,11 @@ static int
 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 {
 	if (dev->data->queue_pairs[qp_id] != NULL) {
+		struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
+
+		if (qp->processed_ops)
+			rte_ring_free(qp->processed_ops);
+
 		rte_free(dev->data->queue_pairs[qp_id]);
 		dev->data->queue_pairs[qp_id] = NULL;
 	}
diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
index fad483c75..d2125233f 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
@@ -142,6 +142,11 @@ static int
 snow3g_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 {
 	if (dev->data->queue_pairs[qp_id] != NULL) {
+		struct snow3g_qp *qp = dev->data->queue_pairs[qp_id];
+
+		if (qp->processed_ops)
+			rte_ring_free(qp->processed_ops);
+
 		rte_free(dev->data->queue_pairs[qp_id]);
 		dev->data->queue_pairs[qp_id] = NULL;
 	}
diff --git a/drivers/crypto/zuc/rte_zuc_pmd_ops.c b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
index 7bd985fc1..1b88947eb 100644
--- a/drivers/crypto/zuc/rte_zuc_pmd_ops.c
+++ b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
@@ -142,6 +142,11 @@ static int
 zuc_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 {
 	if (dev->data->queue_pairs[qp_id] != NULL) {
+		struct zuc_qp *qp = dev->data->queue_pairs[qp_id];
+
+		if (qp->processed_ops)
+			rte_ring_free(qp->processed_ops);
+
 		rte_free(dev->data->queue_pairs[qp_id]);
 		dev->data->queue_pairs[qp_id] = NULL;
 	}
-- 
2.13.6