[XEN PATCH 7/7] vsprintf: address violations of MISRA C:2012 Rule 16.3

[Federico Serafini <federico.serafini@xxxxxxxxxxx>]

MISRA C:2012 Rule 16.3 states: "An unconditional `break' statement
shall terminate every switch-clause".

Add break statement to address violations of the rule or add
pseudo-keyword fallthrough to meet the requirements to deviate it.

No functional change.

Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
---
 xen/common/vsprintf.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/xen/common/vsprintf.c b/xen/common/vsprintf.c
index c49631c0a4..612751c90f 100644
--- a/xen/common/vsprintf.c
+++ b/xen/common/vsprintf.c
@@ -377,7 +377,7 @@ static char *pointer(char *str, const char *end, const char 
**fmt_ptr,
             str = number(str, end, hex_buffer[i], 16, 2, -1, ZEROPAD);
 
             if ( ++i == field_width )
-                return str;
+                break;
 
             if ( sep )
             {
@@ -386,6 +386,8 @@ static char *pointer(char *str, const char *end, const char 
**fmt_ptr,
                 ++str;
             }
         }
+
+        return str;
     }
 
     case 'p': /* PCI SBDF. */
@@ -619,6 +621,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, 
va_list args)
 
         case 'X':
             flags |= LARGE;
+            fallthrough;
         case 'x':
             base = 16;
             break;
@@ -626,6 +629,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, 
va_list args)
         case 'd':
         case 'i':
             flags |= SIGN;
+            fallthrough;
         case 'u':
             break;
 
-- 
2.34.1