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From: Herakliusz Lipiec <herakliusz.lipiec@intel.com>
To: keith.wiles@intel.com
Cc: dev@dpdk.org, Herakliusz Lipiec <herakliusz.lipiec@intel.com>,
	rasland@mellanox.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH 6/8] ipc: fix tap pmd memleak
Date: Wed, 17 Apr 2019 15:42:45 +0100	[thread overview]
Message-ID: <20190417144245.23353-1-herakliusz.lipiec@intel.com> (raw)
Message-ID: <20190417144245.1txqpDae1pkpjtPeUU7sYfjr8wsVu78m_7cQ4mKFWS4@z> (raw)

When sending multiple requests, rte_mp_request_sync
can succeed sending a few of those requests, but then
fail on a later one and in the end return with rc=-1.
The upper layers - e.g. device hotplug - currently
handles this case as if no messages were sent and no
memory for response buffers was allocated, which is
not true. Fixed by always freeing reply message buffers.

Fixes: c9aa56edec8e ("net/tap: access primary process queues from secondary")
Cc: rasland@mellanox.com
Cc: stable@dpdk.org
Signed-off-by: Herakliusz Lipiec <herakliusz.lipiec@intel.com>
---
 drivers/net/tap/rte_eth_tap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index e9fda8cf6..d70412d62 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -2104,6 +2104,7 @@ tap_mp_attach_queues(const char *port_name, struct rte_eth_dev *dev)
 	if (ret < 0) {
 		TAP_LOG(ERR, "Failed to request queues from primary: %d",
 			rte_errno);
+		free(replies.msgs);
 		return -1;
 	}
 	reply = &replies.msgs[0];
@@ -2119,6 +2120,7 @@ tap_mp_attach_queues(const char *port_name, struct rte_eth_dev *dev)
 	for (queue = 0; queue < reply_param->txq_count; queue++)
 		process_private->txq_fds[queue] = reply->fds[fd_iterator++];
 
+	free(replies.msgs);
 	return 0;
 }
 
-- 
2.17.2


             reply	other threads:[~2019-04-17 14:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-17 14:42 Herakliusz Lipiec [this message]
2019-04-17 14:42 ` Herakliusz Lipiec

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