If not signed, testing of the read() return value in this function
will not work.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
Or is long too small?
diff --git a/Documentation/vm/page-types.c b/Documentation/vm/page-types.c
index fa1a30d..d8a799a 100644
--- a/Documentation/vm/page-types.c
+++ b/Documentation/vm/page-types.c
@@ -416,7 +416,7 @@ static void add_page(unsigned long offset, uint64_t flags)
static void walk_pfn(unsigned long index, unsigned long count)
{
unsigned long batch;
- unsigned long n;
+ long n;
unsigned long i;
if (index > ULONG_MAX / KPF_BYTES)
--
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