1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 2b69aa0315b3..d55d0ad0deab 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -115,7 +115,7 @@ int cpm_muram_init(void)
                         max = r.end;
 
                 rh_attach_region(&cpm_muram_info, r.start - muram_pbase,
-                                 r.end - r.start + 1);
+                                 resource_size(&r));
         }
 
         muram_vbase = ioremap(muram_pbase, max - muram_pbase + 1);