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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>
This commit is contained in:
Sven Eckelmann 2017-02-24 15:01:43 -08:00 committed by Linus Torvalds
parent e4c5babd32
commit 9533047363
1 changed files with 2 additions and 2 deletions
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4
scripts/checkpatch.pl
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@ -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);
}