1 files changed, 1 insertions, 1 deletions

diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index e2a3af31ff99..c5a33f007f88 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -170,7 +170,7 @@ void __init reserve_crashkernel(void)
         if (crashk_res.end == crashk_res.start)
                 goto disable;
 
-        crash_size = PAGE_ALIGN(crashk_res.end - crashk_res.start + 1);
+        crash_size = PAGE_ALIGN(resource_size(&crashk_res));
         if (!crashk_res.start) {
                 unsigned long max = memblock_end_of_DRAM() - memory_limit;
                 crashk_res.start = __memblock_alloc_base(crash_size, PAGE_SIZE, max);