From: <sameehj@amazon.com>
To: <davem@davemloft.net>, <netdev@vger.kernel.org>
Cc: Sameeh Jubran <sameehj@amazon.com>, <dwmw@amazon.com>,
<zorik@amazon.com>, <matua@amazon.com>, <saeedb@amazon.com>,
<msw@amazon.com>, <aliguori@amazon.com>, <nafea@amazon.com>,
<gtzalik@amazon.com>, <netanel@amazon.com>, <alisaidi@amazon.com>,
<benh@amazon.com>, <akiyano@amazon.com>
Subject: [PATCH V1 net 3/8] net: ena: fix: Free napi resources when ena_up() fails
Date: Wed, 1 May 2019 16:47:05 +0300 [thread overview]
Message-ID: <20190501134710.8938-4-sameehj@amazon.com> (raw)
In-Reply-To: <20190501134710.8938-1-sameehj@amazon.com>
From: Sameeh Jubran <sameehj@amazon.com>
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 <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
---
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 dbcd58ebd0a9..03244155f74c 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1825,6 +1825,7 @@ static int ena_up(struct ena_adapter *adapter)
err_setup_tx:
ena_free_io_irq(adapter);
err_req_irq:
+ ena_del_napi(adapter);
return rc;
}
--
2.17.1
next prev parent reply other threads:[~2019-05-01 13:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-01 13:47 [PATCH V1 net 0/8] Bug fixes for ENA Ethernet driver sameehj
2019-05-01 13:47 ` [PATCH V1 net 1/8] net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry sameehj
2019-05-01 13:47 ` [PATCH V1 net 2/8] net: ena: fix: set freed objects to NULL to avoid failing future allocations sameehj
2019-05-01 13:47 ` sameehj [this message]
2019-05-01 13:47 ` [PATCH V1 net 4/8] net: ena: fix incorrect test of supported hash function sameehj
2019-05-01 13:47 ` [PATCH V1 net 5/8] net: ena: fix return value of ena_com_config_llq_info() sameehj
2019-05-01 13:47 ` [PATCH V1 net 6/8] net: ena: improve latency by disabling adaptive interrupt moderation by default sameehj
2019-05-01 13:47 ` [PATCH V1 net 7/8] net: ena: fix ena_com_fill_hash_function() implementation sameehj
2019-05-01 13:47 ` [PATCH V1 net 8/8] net: ena: gcc 8: fix compilation warning sameehj
2019-05-04 4:17 ` [PATCH V1 net 0/8] Bug fixes for ENA Ethernet driver David Miller
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