From 4583e77310a2edf39ee91099fba3cd153a22a77b Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Wed, 22 Feb 2017 15:41:54 -0800 Subject: mm/vmalloc.c: use rb_entry_safe Use rb_entry_safe() instead of open-coding it. Link: http://lkml.kernel.org/r/81bb9820e5b9e4a1c596b3e76f88abf8c4a76cb0.1482221947.git.geliangtang@gmail.com Signed-off-by: Geliang Tang Acked-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/vmalloc.c') diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 3ca82d44edd3..5f5b09e9dccd 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2309,7 +2309,7 @@ EXPORT_SYMBOL_GPL(free_vm_area); #ifdef CONFIG_SMP static struct vmap_area *node_to_va(struct rb_node *n) { - return n ? rb_entry(n, struct vmap_area, rb_node) : NULL; + return rb_entry_safe(n, struct vmap_area, rb_node); } /** -- cgit v1.2.3