netdev - [PATCH net] qlcnic: fix a return in qlcnic_dcb_get

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Message-ID: <20181019201111.xwetmozyy46xd3pg@kili.mountain>
Date:   Fri, 19 Oct 2018 23:11:11 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Shahed Shaikh <Shahed.Shaikh@...ium.com>,
        Sucheta Chakraborty <sucheta.chakraborty@...gic.com>
Cc:     Manish Chopra <manish.chopra@...ium.com>,
        Dept-GELinuxNICDev@...ium.com,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH net] qlcnic: fix a return in qlcnic_dcb_get_capability()

These functions are supposed to return one on failure and zero on
success.  Returning a zero here could cause uninitialized variable
bugs in several of the callers.  For example:

    drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1660 get_iscsi_dcb_priority()
    error: uninitialized symbol 'caps'.

Fixes: 48365e485275 ("qlcnic: dcb: Add support for CEE Netlink interface.")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index 4b76c69fe86d..834208e55f7b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -883,7 +883,7 @@ static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid,
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 
 	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
-		return 0;
+		return 1;
 
 	switch (capid) {
 	case DCB_CAP_ATTR_PG:
-- 
2.11.0