From: Vasiliy Kulikov <segooon@xxxxxxxxx> Function check_range may return ERR_PTR(...). Check for it. Signed-off-by: Vasiliy Kulikov <segooon@xxxxxxxxx> --- Compile tested. mm/mempolicy.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index f969da5..b73f02c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -924,12 +924,15 @@ static int migrate_to_node(struct mm_struct *mm, int source, int dest, nodemask_t nmask; LIST_HEAD(pagelist); int err = 0; + struct vm_area_struct *vma; nodes_clear(nmask); node_set(source, nmask); - check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask, + vma = check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask, flags | MPOL_MF_DISCONTIG_OK, &pagelist); + if (IS_ERR(vma)) + return PTR_ERR(vma); if (!list_empty(&pagelist)) err = migrate_pages(&pagelist, new_node_page, dest, 0); -- 1.7.0.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>