mm/gup.c: fix formatting in check_and_migrate_movable_page()

Commit b05a79d ("mm/gup: migrate device coherent pages when pinning
instead of failing") added a badly formatted if statement. Fix it.

Link: https://lkml.kernel.org/r/20220721020552.1397598-2-apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reported-by: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Author: apopple-nvidia

mm/gup.c

@@ -1980,8 +1980,8 @@ static long check_and_migrate_movable_pages(unsigned long nr_pages,
 				    folio_nr_pages(folio));
 	}
 
-	if (!list_empty(&movable_page_list) || isolation_error_count
-		|| coherent_pages)
+	if (!list_empty(&movable_page_list) || isolation_error_count ||
+	    coherent_pages)
 		goto unpin_pages;
 
 	/*