IPoIB: Avoid reading an uninitialized member variable

This patch avoids that Coverity reports the following:

    Using uninitialized value port_attr.state when calling printk

Fixes: commit 94232d9ce817 ("IPoIB: Start multicast join process only on active ports")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Erez Shitrit <erezsh@mellanox.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index d3394b6..2a3980c 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -575,8 +575,11 @@ void ipoib_mcast_join_task(struct work_struct *work)
        if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
                return;
 
-       if (ib_query_port(priv->ca, priv->port, &port_attr) ||
-           port_attr.state != IB_PORT_ACTIVE) {
+       if (ib_query_port(priv->ca, priv->port, &port_attr)) {
+               ipoib_dbg(priv, "ib_query_port() failed\n");
+               return;
+       }
+       if (port_attr.state != IB_PORT_ACTIVE) {
                ipoib_dbg(priv, "port state is not ACTIVE (state = %d) suspending join task\n",
                          port_attr.state);
                return;