[PATCH 1/1] checkpatch.pl: 1-tab relative indent for conditionals/blocks

[Gregory Fong]

The following would incorrectly pass checkpatch:

void foo(void)
{
        if (a) {
                something;
                somethingelse;
        } else {
                        messed_up_indentation;
                }
}

Assume single-tab indentation of blocks to catch this.
Also add "else" to the list to check.

Signed-off-by: Gregory Fong <gregory.0...@gmail.com>
---
 scripts/checkpatch.pl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 182be0f..f94c364 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2523,7 +2523,8 @@ sub process {
                }
 
 # Check relative indent for conditionals and blocks.
-               if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ 
/^.\s*#/ && $line !~ /\}\s*while\s*/) {
+               if ($line =~ /\b(?:(?:if|while|for)\s*\(|do|else\b)/ &&
+                   $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
                        ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
                                ctx_statement_block($linenr, $realcnt, 0)
                                        if (!defined $stat);
@@ -2606,6 +2607,7 @@ sub process {
                        #print "line<$line> prevline<$prevline> indent<$indent> 
sindent<$sindent> check<$check> continuation<$continuation> s<$s> 
cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
 
                        if ($check && (($sindent % 8) != 0 ||
+                           ((($sindent - $indent) / 8) > 1) ||
                            ($sindent <= $indent && $s ne ''))) {
                                WARN("SUSPECT_CODE_INDENT",
                                     "suspect code indent for conditional 
statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
-- 
1.8.3.2

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