diff options
| author | Andy Whitcroft <apw@canonical.com> | 2010-10-26 14:23:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-26 16:52:19 -0700 |
| commit | fb2d2c1b5825503d30fb6f2dc328dbe4a47d9794 (patch) | |
| tree | 6fba2ec80498dcb83615ea27907c89e979902c85 /scripts/checkpatch.pl | |
| parent | d2c0a23514d8ac4ed10a8e742467cfb72ca3bed8 (diff) | |
| download | linux-fb2d2c1b5825503d30fb6f2dc328dbe4a47d9794.tar.bz2 | |
checkpatch: ensure we do not collapse bracketed sections into constants
When determining if a return () sequence is a function style bracketing we
simplify the expression one bracket at a time replacing each with a
constant. However this can trigger a false merge with expressions as
below:
return (foo)0;
Prevent this false merging.
Reported-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 32d6a236570d..8d010ac0efe1 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2183,15 +2183,16 @@ sub process { my $value = $2; # Flatten any parentheses - $value =~ s/\)\(/\) \(/g; + $value =~ s/\(/ \(/g; + $value =~ s/\)/\) /g; while ($value =~ s/\[[^\{\}]*\]/1/ || $value !~ /(?:$Ident|-?$Constant)\s* $Compare\s* (?:$Ident|-?$Constant)/x && $value =~ s/\([^\(\)]*\)/1/) { } - - if ($value =~ /^(?:$Ident|-?$Constant)$/) { +#print "value<$value>\n"; + if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) { ERROR("return is not a function, parentheses are not required\n" . $herecurr); } elsif ($spacing !~ /\s+/) { |