[XEN PATCH v2 2/7] x86/mm: address MISRA C:2012 Rule 2.1

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

The "return 0" after the swich statement in 'xen/arch/x86/mm.c'
is unreachable because all switch clauses end with returns, and
can thus be dropped.

No functional changes.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
---
Changes in v2:
- Drop the final return instead. A stripped-down version of this switch has been
  tested on godbolt.org with gcc-4.1.2 and shows no compile-time issues.
---
 xen/arch/x86/mm.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 0a66db10b959..49d9f371f35c 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -4887,8 +4887,6 @@ long arch_memory_op(unsigned long cmd, 
XEN_GUEST_HANDLE_PARAM(void) arg)
     default:
         return subarch_memory_op(cmd, arg);
     }
-
-    return 0;
 }
 
 int cf_check mmio_ro_emulated_write(
-- 
2.34.1