linux-kernel - [PATCH 1/6] checkpatch: handle missing #if open in context

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Message-Id: <1231764304-1491-2-git-send-email-apw@canonical.com>
Date:	Mon, 12 Jan 2009 12:44:59 +0000
From:	Andy Whitcroft <apw@...onical.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andy Whitcroft <apw@...onical.com>
Subject: [PATCH 1/6] checkpatch: handle missing #if open in context

If the #if opening statement is not in the context then the context
stack can be empty.  Handle this by ensuring there is always a blank
entry in the stack.

Signed-off-by: Andy Whitcroft <apw@...onical.com>
Tested-by: Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@...e.hu>
---
 scripts/checkpatch.pl |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7bed4ed..eefef65 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -411,13 +411,15 @@ sub ctx_statement_block {
 
 	my $type = '';
 	my $level = 0;
-	my @stack = ([$type, $level]);
+	my @stack = ();
 	my $p;
 	my $c;
 	my $len = 0;
 
 	my $remainder;
 	while (1) {
+		@stack = (['', 0]) if ($#stack == -1);
+
 		#warn "CSB: blk<$blk> remain<$remain>\n";
 		# If we are about to drop off the end, pull in more
 		# context.
-- 
1.6.0.4.911.gc990

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