diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/s390/mm/pgtable.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 0c719c61972e..e1850c28cd68 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c | |||
@@ -336,7 +336,8 @@ void page_table_free(struct mm_struct *mm, unsigned long *table) | |||
336 | page->flags ^= bits; | 336 | page->flags ^= bits; |
337 | if (page->flags & FRAG_MASK) { | 337 | if (page->flags & FRAG_MASK) { |
338 | /* Page now has some free pgtable fragments. */ | 338 | /* Page now has some free pgtable fragments. */ |
339 | list_move(&page->lru, &mm->context.pgtable_list); | 339 | if (!list_empty(&page->lru)) |
340 | list_move(&page->lru, &mm->context.pgtable_list); | ||
340 | page = NULL; | 341 | page = NULL; |
341 | } else | 342 | } else |
342 | /* All fragments of the 4K page have been freed. */ | 343 | /* All fragments of the 4K page have been freed. */ |