twl4030-usb: rename twl4030_driver to twl4030_usb_driver.

[linux-2.6-omap-h63xx.git] / kernel / cgroup.c

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 249a517591b8c18a30da8b1479babc5aef983a38..a0123d75ec9a7624f897bc2984ca4009b61abfbc 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2368,7 +2368,7 @@ static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode)
        return cgroup_create(c_parent, dentry, mode | S_IFDIR);
 }
 
-static inline int cgroup_has_css_refs(struct cgroup *cgrp)
+static int cgroup_has_css_refs(struct cgroup *cgrp)
 {
        /* Check the reference count on each subsystem. Since we
         * already established that there are no tasks in the
@@ -2738,14 +2738,15 @@ void cgroup_fork_callbacks(struct task_struct *child)
  */
 void cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new)
 {
-       struct cgroup *oldcgrp, *newcgrp;
+       struct cgroup *oldcgrp, *newcgrp = NULL;
 
        if (need_mm_owner_callback) {
                int i;
                for (i = 0; i < CGROUP_SUBSYS_COUNT; i++) {
                        struct cgroup_subsys *ss = subsys[i];
                        oldcgrp = task_cgroup(old, ss->subsys_id);
-                       newcgrp = task_cgroup(new, ss->subsys_id);
+                       if (new)
+                               newcgrp = task_cgroup(new, ss->subsys_id);
                        if (oldcgrp == newcgrp)
                                continue;
                        if (ss->mm_owner_changed)