DPDK patches and discussions
 help / color / mirror / Atom feed
From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: dev@dpdk.org
Cc: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Subject: [dpdk-dev] [PATCH v2] net/bnxt: fix a potential resource leak
Date: Thu, 22 Oct 2020 22:12:53 -0700	[thread overview]
Message-ID: <20201023051253.37942-1-ajit.khaparde@broadcom.com> (raw)
In-Reply-To: <d9909941-980a-b818-1fab-e4531379c797@intel.com>

Fix a potential resource leak in case of errors during dev args
parsing during device probe.

Fixes: 6dc83230b43b ("net/bnxt: support port representor data path")

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
---
v1->v2: addressed the review comment.
---
 drivers/net/bnxt/bnxt_ethdev.c | 66 ++++++++++++++++++++++++----------
 1 file changed, 47 insertions(+), 19 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 562cf14ba4..a0e01d059d 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -6285,7 +6285,7 @@ static int bnxt_rep_port_probe(struct rte_pci_device *pci_dev,
 	struct bnxt *backing_bp;
 	uint16_t num_rep;
 	int i, ret = 0;
-	struct rte_kvargs *kvlist;
+	struct rte_kvargs *kvlist = NULL;
 
 	num_rep = eth_da.nb_representor_ports;
 	if (num_rep > BNXT_MAX_VF_REPS) {
@@ -6339,49 +6339,74 @@ static int bnxt_rep_port_probe(struct rte_pci_device *pci_dev,
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_IS_PF,
-					   bnxt_parse_devarg_rep_is_pf,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist, BNXT_DEVARG_REP_IS_PF,
+						 bnxt_parse_devarg_rep_is_pf,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 			/*
 			 * Handler for "rep_based_pf" devarg.
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_BASED_PF,
-					   bnxt_parse_devarg_rep_based_pf,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist,
+						 BNXT_DEVARG_REP_BASED_PF,
+						 bnxt_parse_devarg_rep_based_pf,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 			/*
 			 * Handler for "rep_based_pf" devarg.
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_Q_R2F,
-					   bnxt_parse_devarg_rep_q_r2f,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist, BNXT_DEVARG_REP_Q_R2F,
+						 bnxt_parse_devarg_rep_q_r2f,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 			/*
 			 * Handler for "rep_based_pf" devarg.
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_Q_F2R,
-					   bnxt_parse_devarg_rep_q_f2r,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist, BNXT_DEVARG_REP_Q_F2R,
+						 bnxt_parse_devarg_rep_q_f2r,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 			/*
 			 * Handler for "rep_based_pf" devarg.
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_FC_R2F,
-					   bnxt_parse_devarg_rep_fc_r2f,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist, BNXT_DEVARG_REP_FC_R2F,
+						 bnxt_parse_devarg_rep_fc_r2f,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 			/*
 			 * Handler for "rep_based_pf" devarg.
 			 * Invoked as for ex: "-w 000:00:0d.0,
 			 * rep-based-pf=<pf index> rep-is-pf=<VF=0 or PF=1>"
 			 */
-			rte_kvargs_process(kvlist, BNXT_DEVARG_REP_FC_F2R,
-					   bnxt_parse_devarg_rep_fc_f2r,
-					   (void *)&representor);
+			ret = rte_kvargs_process(kvlist, BNXT_DEVARG_REP_FC_F2R,
+						 bnxt_parse_devarg_rep_fc_f2r,
+						 (void *)&representor);
+			if (ret) {
+				ret = -EINVAL;
+				goto err;
+			}
 		}
 
 		ret = rte_eth_dev_create(&pci_dev->device, name,
@@ -6411,6 +6436,7 @@ static int bnxt_rep_port_probe(struct rte_pci_device *pci_dev,
 
 	}
 
+	rte_kvargs_free(kvlist);
 	return 0;
 
 err:
@@ -6419,6 +6445,8 @@ static int bnxt_rep_port_probe(struct rte_pci_device *pci_dev,
 	 */
 	if (num_rep > 1)
 		bnxt_pci_remove_dev_with_reps(backing_eth_dev);
+	rte_errno = -ret;
+	rte_kvargs_free(kvlist);
 
 	return ret;
 }
-- 
2.21.1 (Apple Git-122.3)


  parent reply	other threads:[~2020-10-23  5:13 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-21  6:00 [dpdk-dev] [PATCH] " Ajit Khaparde
2020-10-21 14:04 ` Ajit Khaparde
2020-10-22 11:47 ` Ferruh Yigit
2020-10-23  5:11   ` Ajit Khaparde
2020-10-23  5:12   ` Ajit Khaparde [this message]
2020-10-23  5:17     ` [dpdk-dev] [PATCH v2] " Ajit Khaparde

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201023051253.37942-1-ajit.khaparde@broadcom.com \
    --to=ajit.khaparde@broadcom.com \
    --cc=dev@dpdk.org \
    --cc=kalesh-anakkur.purayil@broadcom.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).