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checkpatch: fix brace style misuses of else and while

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Add --fix corrections for ELSE_AFTER_BRACE and WHILE_AFTER_BRACE
misuses.

	if (x) {
		...
	}
	else {
		...
	}

is corrected to

	if (x) {
		...
	} else {
		...
	}

and

	do {
		...
	}
	while (x);

is corrected to

	do {
		...
	} while (x);

Signed-off-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:
Joe Perches 2014-08-06 16:11:14 -07:00 committed by Linus Torvalds
parent 8d1824780f
commit 8b8856f4b1
1 changed files with 30 additions and 8 deletions
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38
scripts/checkpatch.pl
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@ -3885,14 +3885,26 @@ sub process {
# Check for }<nl>else {, these must be at the same
# indent level to be relevant to each other.
if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and
$previndent == $indent) {
ERROR("ELSE_AFTER_BRACE",
"else should follow close brace '}'\n" . $hereprev);
if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ &&
$previndent == $indent) {
if (ERROR("ELSE_AFTER_BRACE",
"else should follow close brace '}'\n" . $hereprev) &&
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
fix_delete_line($fixlinenr - 1, $prevrawline);
fix_delete_line($fixlinenr, $rawline);
my $fixedline = $prevrawline;
$fixedline =~ s/}\s*$//;
if ($fixedline !~ /^\+\s*$/) {
fix_insert_line($fixlinenr, $fixedline);
}
$fixedline = $rawline;
$fixedline =~ s/^(.\s*)else/$1} else/;
fix_insert_line($fixlinenr, $fixedline);
}
}
if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
$previndent == $indent) {
if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ &&
$previndent == $indent) {
my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
# Find out what is on the end of the line after the
@ -3901,8 +3913,18 @@ sub process {
$s =~ s/\n.*//g;
if ($s =~ /^\s*;/) {
ERROR("WHILE_AFTER_BRACE",
"while should follow close brace '}'\n" . $hereprev);
if (ERROR("WHILE_AFTER_BRACE",
"while should follow close brace '}'\n" . $hereprev) &&
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
fix_delete_line($fixlinenr - 1, $prevrawline);
fix_delete_line($fixlinenr, $rawline);
my $fixedline = $prevrawline;
my $trailing = $rawline;
$trailing =~ s/^\+//;
$trailing = trim($trailing);
$fixedline =~ s/}\s*$/} $trailing/;
fix_insert_line($fixlinenr, $fixedline);
}
}
}