X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmemcontrol.c;h=0f1f7a7374bade23cf0052719a349a97322c5af4;hb=f3944d61ddc65722539ffd7b6f5b7c7217c136cc;hp=7056c3bdb47821d791ba7bc6a9355018094ef34e;hpb=67a077dca4e648a662e32cbeaaba8094d2e30229;p=linux-2.6

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 7056c3bdb4..0f1f7a7374 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -796,6 +796,8 @@ int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask)
 
 	if (mem_cgroup_subsys.disabled)
 		return 0;
+	if (!mm)
+		return 0;
 
 	rcu_read_lock();
 	mem = mem_cgroup_from_task(rcu_dereference(mm->owner));