kernel-doc: detect trailing kernel-doc line trash

Print a warning when a kernel-doc comment block ends with text on the same
line as the ending comment characters, e.g.:

 * this text is lost. */

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 99364a5e77f2..83cee18a02e9 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1950,6 +1950,11 @@ sub process_file($) {
                     $section = $section_default;
                     $contents = "";
                 }
+                # look for doc_com + <text> + doc_end:
+                if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
+                    print STDERR "Warning(${file}:$.): suspicious ending line: $_";
+                    ++$warnings;
+                }
 
                 $prototype = "";
                 $state = 3;