1 files changed, 1 insertions, 1 deletions

diff --git a/mm/debug.c b/mm/debug.c
index 45d9eb77b84e..eee9c221280c 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -79,7 +79,7 @@ void __dump_page(struct page *page, const char *reason)
                 pr_warn("ksm ");
         else if (mapping) {
                 pr_warn("%ps ", mapping->a_ops);
-                if (mapping->host->i_dentry.first) {
+                if (mapping->host && mapping->host->i_dentry.first) {
                         struct dentry *dentry;
                         dentry = container_of(mapping->host->i_dentry.first, struct dentry, d_u.d_alias);
                         pr_warn("name:\"%pd\" ", dentry);