linux-kernel - [PATCH] checkpatch: Fix "Use of uninitialized value" warnings

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Date:	Mon, 18 Nov 2013 05:51:04 -0800
From:	Joe Perches <joe@...ches.com>
To:	Gerhard Sittig <gsi@...x.de>, Andy Whitcroft <apw@...onical.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] checkpatch: Fix "Use of uninitialized value" warnings

checkpatch is currently confused about some complex macros
and references undefined variables $stat and $cond.

Make sure these are defined before using them.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 61090e0..9c981003 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3289,6 +3289,7 @@ sub process {
 			}
 		}
 		if (!defined $suppress_whiletrailers{$linenr} &&
+		    defined($stat) && defined($cond) &&
 		    $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
 			my ($s, $c) = ($stat, $cond);
 


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