IB/qib: Fix context allocation with multiple HCAs

The driver was incorrectly choosing HCAs on which to allocate new user
contexts based on overall count of usable ports regardless whether the
usable port was on the currently selected HCA.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 79d9971aff1f..75bfad16c114 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -1379,17 +1379,17 @@ static int get_a_ctxt(struct file *fp, const struct qib_user_info *uinfo,
                 /* find device (with ACTIVE ports) with fewest ctxts in use */
                 for (ndev = 0; ndev < devmax; ndev++) {
                         struct qib_devdata *dd = qib_lookup(ndev);
-                        unsigned cused = 0, cfree = 0;
+                        unsigned cused = 0, cfree = 0, pusable = 0;
                         if (!dd)
                                 continue;
                         if (port && port <= dd->num_pports &&
                             usable(dd->pport + port - 1))
-                                dusable = 1;
+                                pusable = 1;
                         else
                                 for (i = 0; i < dd->num_pports; i++)
                                         if (usable(dd->pport + i))
-                                                dusable++;
-                        if (!dusable)
+                                                pusable++;
+                        if (!pusable)
                                 continue;
                         for (ctxt = dd->first_user_ctxt; ctxt < dd->cfgctxts;
                              ctxt++)
@@ -1397,7 +1397,7 @@ static int get_a_ctxt(struct file *fp, const struct qib_user_info *uinfo,
                                         cused++;
                                 else
                                         cfree++;
-                        if (cfree && cused < inuse) {
+                        if (pusable && cfree && cused < inuse) {
                                 udd = dd;
                                 inuse = cused;
                         }