diff mbox

[dpdk-dev,3/4] net/ena: cleanup if refilling of Rx descriptors fails

Message ID 1491562138-2178-4-git-send-email-mw@semihalf.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Marcin Wojtas April 7, 2017, 10:48 a.m. UTC 
  From: Michal Krawczyk <mk@semihalf.com>

If wrong number of descriptors for refilling was passed to the Rx
repopulate function, there was memory leak which caused memory pool to
run out of resources in longer go.

In case of fail when refilling Rx descriptors, all additional mbufs
have to be released.

Fixes: 1173fca25af9 ("ena: add polling-mode driver")

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
---
 drivers/net/ena/ena_ethdev.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox

Patch

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index d875a2b..54ba5c1 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1172,6 +1172,8 @@  static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
 		rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq,
 						&ebuf, next_to_use_masked);
 		if (unlikely(rc)) {
+			rte_mempool_put_bulk(rxq->mb_pool, (void **)(&mbuf),
+					     count - i);
 			RTE_LOG(WARNING, PMD, "failed adding rx desc\n");
 			break;
 		}