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Message-Id: <20181025141053.213330-35-sashal@kernel.org>
Date: Thu, 25 Oct 2018 10:10:42 -0400
From: Sasha Levin <sashal@...nel.org>
To: stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Govindarajulu Varadarajan <gvaradar@...co.com>,
"David S . Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.14 35/46] enic: do not overwrite error code
From: Govindarajulu Varadarajan <gvaradar@...co.com>
[ Upstream commit 56f772279a762984f6e9ebbf24a7c829faba5712 ]
In failure path, we overwrite err to what vnic_rq_disable() returns. In
case it returns 0, enic_open() returns success in case of error.
Reported-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Fixes: e8588e268509 ("enic: enable rq before updating rq descriptors")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@...co.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/ethernet/cisco/enic/enic_main.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 2bfaf3e118b1..03f4fee1bbc9 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1879,7 +1879,7 @@ static int enic_open(struct net_device *netdev)
{
struct enic *enic = netdev_priv(netdev);
unsigned int i;
- int err;
+ int err, ret;
err = enic_request_intr(enic);
if (err) {
@@ -1936,10 +1936,9 @@ static int enic_open(struct net_device *netdev)
err_out_free_rq:
for (i = 0; i < enic->rq_count; i++) {
- err = vnic_rq_disable(&enic->rq[i]);
- if (err)
- return err;
- vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
+ ret = vnic_rq_disable(&enic->rq[i]);
+ if (!ret)
+ vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
}
enic_dev_notify_unset(enic);
err_out_free_intr:
--
2.17.1
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