From: Sameeh Jubran <sameehj@amazon.com>
Date: Wed, 1 May 2019 13:47:05 +0000 (+0300)
Subject: net: ena: fix: Free napi resources when ena_up() fails
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b287cdbd1cedfc9606682c6e02b58d00ff3a33ae;p=linux.git

net: ena: fix: Free napi resources when ena_up() fails

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index dbcd58ebd0a90..03244155f74cb 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1825,6 +1825,7 @@ err_setup_rx:
 err_setup_tx:
 	ena_free_io_irq(adapter);
 err_req_irq:
+	ena_del_napi(adapter);
 
 	return rc;
 }