[XEN PATCH 3/5] xen/acpi: Use NULL as a null pointer constant

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

Resolves a violation of MISRA C Rule 11.9.
No functional change.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
---
 xen/include/acpi/acmacros.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/include/acpi/acmacros.h b/xen/include/acpi/acmacros.h
index 86c503c20f3b..e7ca18e3dc66 100644
--- a/xen/include/acpi/acmacros.h
+++ b/xen/include/acpi/acmacros.h
@@ -111,7 +111,7 @@
 
 #define ACPI_TO_POINTER(i)              ACPI_ADD_PTR (void,(void *) 
NULL,(acpi_native_uint) i)
 #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p,(void *) NULL)
-#define ACPI_OFFSET(d,f)                (acpi_size) ACPI_PTR_DIFF (&(((d 
*)0)->f),(void *) NULL)
+#define ACPI_OFFSET(d,f)                (acpi_size) ACPI_PTR_DIFF (&(((d 
*)NULL)->f),(void *) NULL)
 #define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
 
-- 
2.34.1