checkpatch: switch -- report trailing statements on case and default

Report trailing statements on case and default lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 614999f..5f71b30 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1244,6 +1244,10 @@ sub process {
                                ERROR("switch and case should be at the same indent\n$hereline$err");
                        }
                }
+               if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
+                   $line !~ /\G(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$/g) {
+                       ERROR("trailing statements should be on next line\n" . $herecurr);
+               }
 
 # if/while/etc brace do not go on next line, unless defining a do while loop,
 # or if that brace on the next line is for something else