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Date:   Thu, 16 Jan 2020 12:20:55 -0500
From:   Sasha Levin <>
Cc:     Sameeh Jubran <>,
        Arthur Kiyanovski <>,
        "David S . Miller" <>,
        Sasha Levin <>,
Subject: [PATCH AUTOSEL 4.14 183/371] net: ena: fix: Free napi resources when ena_up() fails

From: Sameeh Jubran <>

[ Upstream commit b287cdbd1cedfc9606682c6e02b58d00ff3a33ae ]

ena_up() calls ena_init_napi() but does not call ena_del_napi() in
case of failure. This causes a segmentation fault upon rmmod when
netif_napi_del() is called. Fix this bug by calling ena_del_napi()
before returning error from ena_up().

Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Arthur Kiyanovski <>
Signed-off-by: Sameeh Jubran <>
Signed-off-by: David S. Miller <>
Signed-off-by: Sasha Levin <>
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index d22b138c2b09..518ff393a026 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1796,6 +1796,7 @@ static int ena_up(struct ena_adapter *adapter)
+	ena_del_napi(adapter);
 	return rc;

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