[XEN PATCH 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.
However, some of them can be substituted with "break"s to allow
the "return 0" outside the switch to be reachable.

No functional changes.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
---
 xen/arch/x86/mm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 0a66db10b959..8b31426a5348 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -4753,7 +4753,7 @@ long arch_memory_op(unsigned long cmd, 
XEN_GUEST_HANDLE_PARAM(void) arg)
         }
 
         spin_unlock(&d->arch.e820_lock);
-        return 0;
+        break;
     }
 
     case XENMEM_machine_memory_map:
@@ -4818,7 +4818,7 @@ long arch_memory_op(unsigned long cmd, 
XEN_GUEST_HANDLE_PARAM(void) arg)
         if ( __copy_to_guest(arg, &ctxt.map, 1) )
             return -EFAULT;
 
-        return 0;
+        break;
     }
 
     case XENMEM_machphys_mapping:
@@ -4834,7 +4834,7 @@ long arch_memory_op(unsigned long cmd, 
XEN_GUEST_HANDLE_PARAM(void) arg)
         if ( copy_to_guest(arg, &mapping, 1) )
             return -EFAULT;
 
-        return 0;
+        break;
     }
 
 #ifdef CONFIG_HVM
-- 
2.34.1