[PATCH] mm, gup: fix typo in gup_p4d_range()

[Kirill A. Shutemov]

gup_p4d_range() should call gup_pud_range(), not itself.

Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>
Reported-by: Chris Packham <chris.pack...@alliedtelesis.co.nz>
Fixes: c2febafc6773 ("mm: convert generic code to 5-level paging")
---
 mm/gup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/gup.c b/mm/gup.c
index c74bad1bf6e8..04aa405350dc 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1455,7 +1455,7 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, 
unsigned long end,
                        if (!gup_huge_pd(__hugepd(p4d_val(p4d)), addr,
                                         P4D_SHIFT, next, write, pages, nr))
                                return 0;
-               } else if (!gup_p4d_range(p4d, addr, next, write, pages, nr))
+               } else if (!gup_pud_range(p4d, addr, next, write, pages, nr))
                        return 0;
        } while (p4dp++, addr = next, addr != end);
 
-- 
2.11.0