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From: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
To: jerin.jacob@caviumnetworks.com, dev@dpdk.org
Cc: narender.vangati@intel.com, abhinandan.gujjar@intel.com,
	john.mcnamara@intel.com
Subject: [dpdk-dev] [PATCH] eventdev: fix control flow issues
Date: Wed, 24 Apr 2019 22:04:38 +0530	[thread overview]
Message-ID: <1556123678-80860-1-git-send-email-abhinandan.gujjar@intel.com> (raw)
Message-ID: <20190424163438.HFz1NqhwX7NCjW2T4Hg5kkZZAM2UzmB4UN5PZw7LTuE@z> (raw)

This patch fixes null pointer dereference and control
flow issues reported in event crypto adapter by coverity

Coverity issue: 279439 Dereference null return value
Coverity issue: 279446 Logically dead code
Coverity issue: 279450 Logically dead code
Coverity issue: 279462 Logically dead code
Fixes: 7901eac3409 ("eventdev: add crypto adapter implementation")

Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
---
 lib/librte_eventdev/rte_event_crypto_adapter.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/lib/librte_eventdev/rte_event_crypto_adapter.c b/lib/librte_eventdev/rte_event_crypto_adapter.c
index 11b28ca..5faf3c9 100644
--- a/lib/librte_eventdev/rte_event_crypto_adapter.c
+++ b/lib/librte_eventdev/rte_event_crypto_adapter.c
@@ -159,6 +159,9 @@ struct crypto_queue_pair_info {
 	struct rte_event_port_conf *port_conf = arg;
 	struct rte_event_crypto_adapter *adapter = eca_id_to_adapter(id);
 
+	if (adapter == NULL)
+		return -EINVAL;
+
 	dev = &rte_eventdevs[adapter->eventdev_id];
 	dev_conf = dev->data->dev_conf;
 
@@ -353,7 +356,7 @@ struct crypto_queue_pair_info {
 			cdev_id = m_data->request_info.cdev_id;
 			qp_id = m_data->request_info.queue_pair_id;
 			qp_info = &adapter->cdevs[cdev_id].qpairs[qp_id];
-			if (qp_info == NULL) {
+			if (!qp_info->qp_enabled) {
 				rte_pktmbuf_free(crypto_op->sym->m_src);
 				rte_crypto_op_free(crypto_op);
 				continue;
@@ -369,7 +372,7 @@ struct crypto_queue_pair_info {
 			cdev_id = m_data->request_info.cdev_id;
 			qp_id = m_data->request_info.queue_pair_id;
 			qp_info = &adapter->cdevs[cdev_id].qpairs[qp_id];
-			if (qp_info == NULL) {
+			if (!qp_info->qp_enabled) {
 				rte_pktmbuf_free(crypto_op->sym->m_src);
 				rte_crypto_op_free(crypto_op);
 				continue;
@@ -427,10 +430,9 @@ struct crypto_queue_pair_info {
 	ret = 0;
 	for (cdev_id = 0; cdev_id < num_cdev; cdev_id++) {
 		curr_dev = &adapter->cdevs[cdev_id];
-		if (curr_dev == NULL)
-			continue;
 		dev = curr_dev->dev;
-
+		if (dev == NULL)
+			continue;
 		for (qp = 0; qp < dev->data->nb_queue_pairs; qp++) {
 
 			curr_queue = &curr_dev->qpairs[qp];
@@ -579,9 +581,9 @@ struct crypto_queue_pair_info {
 		for (cdev_id = adapter->next_cdev_id;
 			cdev_id < num_cdev; cdev_id++) {
 			curr_dev = &adapter->cdevs[cdev_id];
-			if (curr_dev == NULL)
-				continue;
 			dev = curr_dev->dev;
+			if (dev == NULL)
+				continue;
 			dev_qps = dev->data->nb_queue_pairs;
 
 			for (qp = curr_dev->next_queue_pair_id;
-- 
1.9.1


             reply	other threads:[~2019-04-25  9:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-24 16:34 Abhinandan Gujjar [this message]
2019-04-24 16:34 ` Abhinandan Gujjar
2019-04-26  8:00 ` Jerin Jacob Kollanukkaran
2019-04-26  8:00   ` Jerin Jacob Kollanukkaran
2019-04-30  9:44   ` Mcnamara, John
2019-04-30  9:44     ` Mcnamara, John
2019-04-30 17:08     ` Jerin Jacob Kollanukkaran
2019-04-30 17:08       ` Jerin Jacob Kollanukkaran
2019-05-01 21:11   ` Thomas Monjalon
2019-05-01 21:11     ` Thomas Monjalon

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