From 95330473636e5e4546f94874c957c3be66bb2140 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Fri, 24 Feb 2017 15:01:43 -0800
Subject: checkpatch: remove false unbalanced braces warning

Lines containing "} else {" should not be detected as unbalanced braces.
But the second check can be reduced to ".+else\s*{" and it therefore
never checked if the beginning of a line contains any other character
(like the relevant "}").  This check would also return true for "} else
{" and create warnings like

    CHECK: Unbalanced braces around else statement
    #391: FILE: ./net/batman-adv/tvlv.c:391:
    +   } else {

The check can be changed to check the whole line for the missing "}" to
avoid this false positive.

Fixes: 0d1532456c26 ("checkpatch: notice unbalanced else braces in a patch")
Link: http://lkml.kernel.org/r/20170220121644.12209-1-sven@narfation.org
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'scripts/checkpatch.pl')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7fb73d92801c..918259a55f65 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5105,8 +5105,8 @@ sub process {
 		}
 
 # check for single line unbalanced braces
-		if ($sline =~ /.\s*\}\s*else\s*$/ ||
-		    $sline =~ /.\s*else\s*\{\s*$/) {
+		if ($sline =~ /^.\s*\}\s*else\s*$/ ||
+		    $sline =~ /^.\s*else\s*\{\s*$/) {
 			CHK("BRACES", "Unbalanced braces around else statement\n" . $herecurr);
 		}
 
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