We have to free via kvfree(), not via kfree().

Fixes: c77369b437f9 ("mm/gup_test: start/stop/read functionality for PIN LONGTERM test")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 mm/gup_test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/gup_test.c b/mm/gup_test.c
index 33f431e0da60..8ae7307a1bb6 100644
--- a/mm/gup_test.c
+++ b/mm/gup_test.c
@@ -214,7 +214,7 @@ static inline void pin_longterm_test_stop(void)
 		if (pin_longterm_test_nr_pages)
 			unpin_user_pages(pin_longterm_test_pages,
 					 pin_longterm_test_nr_pages);
-		kfree(pin_longterm_test_pages);
+		kvfree(pin_longterm_test_pages);
 		pin_longterm_test_pages = NULL;
 		pin_longterm_test_nr_pages = 0;
 	}
@@ -255,7 +255,7 @@ static inline int pin_longterm_test_start(unsigned long arg)
 	fast = !!(args.flags & PIN_LONGTERM_TEST_FLAG_USE_FAST);
 
 	if (!fast && mmap_read_lock_killable(current->mm)) {
-		kfree(pages);
+		kvfree(pages);
 		return -EINTR;
 	}
 
-- 
2.38.1