[PATCH] memblock: Return NUMA_NO_NODE instead of -1 to improve code readability

[Yuntao Wang]

When no corresponding memory region is found for the given pfn, return
NUMA_NO_NODE instead of -1. This improves code readability and aligns with
the existing logic of the memblock_search_pfn_nid() function's user.

Signed-off-by: Yuntao Wang <ytcoode@xxxxxxxxx>
---
 mm/memblock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index 5a88d6d24d79..c1f579c23396 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1851,7 +1851,7 @@ int __init_memblock memblock_search_pfn_nid(unsigned long pfn,
 	int mid = memblock_search(type, PFN_PHYS(pfn));
 
 	if (mid == -1)
-		return -1;
+		return NUMA_NO_NODE;
 
 	*start_pfn = PFN_DOWN(type->regions[mid].base);
 	*end_pfn = PFN_DOWN(type->regions[mid].base + type->regions[mid].size);
-- 
2.43.0