Update to 3.4-rc5.

[linux-flexiantxendom0-3.2.10.git] / kernel / sched / core.c

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 50045bd..fb39f96 100644 (file)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6453,16 +6453,26 @@ static void __sdt_free(const struct cpumask *cpu_map)
                struct sd_data *sdd = &tl->data;
 
                for_each_cpu(j, cpu_map) {
-                       struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j);
-                       if (sd && (sd->flags & SD_OVERLAP))
-                               free_sched_groups(sd->groups, 0);
-                       kfree(*per_cpu_ptr(sdd->sd, j));
-                       kfree(*per_cpu_ptr(sdd->sg, j));
-                       kfree(*per_cpu_ptr(sdd->sgp, j));
+                       struct sched_domain *sd;
+
+                       if (sdd->sd) {
+                               sd = *per_cpu_ptr(sdd->sd, j);
+                               if (sd && (sd->flags & SD_OVERLAP))
+                                       free_sched_groups(sd->groups, 0);
+                               kfree(*per_cpu_ptr(sdd->sd, j));
+                       }
+
+                       if (sdd->sg)
+                               kfree(*per_cpu_ptr(sdd->sg, j));
+                       if (sdd->sgp)
+                               kfree(*per_cpu_ptr(sdd->sgp, j));
                }
                free_percpu(sdd->sd);
+               sdd->sd = NULL;
                free_percpu(sdd->sg);
+               sdd->sg = NULL;
                free_percpu(sdd->sgp);
+               sdd->sgp = NULL;
        }
 }