memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name()

free_reserved_area() expects end parameter to point to the first address
after the area, but reserve_mem_release_by_name() passes it the last
address inside the area.

Remove subtraction of one in calculation of the area end.

Fixes: 74e2498 ("mm/memblock: Add reserved memory release function")
Link: https://patch.msgid.link/20260323074836.3653702-2-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>

Author: rppt

mm/memblock.c

@@ -2460,7 +2460,7 @@ int reserve_mem_release_by_name(const char *name)
 		return 0;
 
 	start = phys_to_virt(map->start);
-	end = start + map->size - 1;
+	end = start + map->size;
 	snprintf(buf, sizeof(buf), "reserve_mem:%s", name);
 	free_reserved_area(start, end, 0, buf);
 	map->size = 0;