hwmon: (adt7470) Fix incorrect return code check

[firefly-linux-kernel-4.4.55.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 1ae21d645c681f517abfe0feef252d5205a8acd1..7dbe39745be9e86b05d51b6372a609ec268c6330 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -865,7 +865,7 @@ again:                      remove_next = 1 + (end > next->vm_end);
                if (next->anon_vma)
                        anon_vma_merge(vma, next);
                mm->map_count--;
-               vma_set_policy(vma, vma_policy(next));
+               mpol_put(vma_policy(next));
                kmem_cache_free(vm_area_cachep, next);
                /*
                 * In mprotect's case 6 (see comments on vma_merge),
@@ -1367,9 +1367,13 @@ SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len,
                        len = ALIGN(len, huge_page_size(hstate_file(file)));
        } else if (flags & MAP_HUGETLB) {
                struct user_struct *user = NULL;
+               struct hstate *hs = hstate_sizelog((flags >> MAP_HUGE_SHIFT) &
+                                                  SHM_HUGE_MASK);
 
-               len = ALIGN(len, huge_page_size(hstate_sizelog(
-                       (flags >> MAP_HUGE_SHIFT) & MAP_HUGE_MASK)));
+               if (!hs)
+                       return -EINVAL;
+
+               len = ALIGN(len, huge_page_size(hs));
                /*
                 * VM_NORESERVE is used because the reservations will be
                 * taken when vm_ops->mmap() is called