enic: do not overwrite error code

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@codethink.co.uk>
Fixes: e8588e268509 ("enic: enable rq before updating rq descriptors")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files 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 e6ad581eadd8..90c645b8538e 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1920,7 +1920,7 @@ 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) {
@@ -1977,10 +1977,9 @@ 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: