checkpatch: fix the perlcritic errors

Clean up checkpatch using perlcritic.

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>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 94371f6..bd6ac90 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -69,7 +69,9 @@ my $dbg_possible = 0;
 my $dbg_type = 0;
 my $dbg_attr = 0;
 for my $key (keys %debug) {
-       eval "\${dbg_$key} = '$debug{$key}';"
+       ## no critic
+       eval "\${dbg_$key} = '$debug{$key}';";
+       die "$@" if ($@);
 }
 
 if ($terse) {
@@ -206,9 +208,9 @@ my @dep_includes = ();
 my @dep_functions = ();
 my $removal = "Documentation/feature-removal-schedule.txt";
 if ($tree && -f "$root/$removal") {
-       open(REMOVE, "<$root/$removal") ||
+       open(my $REMOVE, '<', "$root/$removal") ||
                                die "$P: $removal: open failed - $!\n";
-       while (<REMOVE>) {
+       while (<$REMOVE>) {
                if (/^Check:\s+(.*\S)/) {
                        for my $entry (split(/[, ]+/, $1)) {
                                if ($entry =~ m@include/(.*)@) {
@@ -220,17 +222,21 @@ if ($tree && -f "$root/$removal") {
                        }
                }
        }
+       close($REMOVE);
 }
 
 my @rawlines = ();
 my @lines = ();
 my $vname;
 for my $filename (@ARGV) {
+       my $FILE;
        if ($file) {
-               open(FILE, "diff -u /dev/null $filename|") ||
+               open($FILE, '-|', "diff -u /dev/null $filename") ||
                        die "$P: $filename: diff failed - $!\n";
+       } elsif ($filename eq '-') {
+               open($FILE, '<&STDIN');
        } else {
-               open(FILE, "<$filename") ||
+               open($FILE, '<', "$filename") ||
                        die "$P: $filename: open failed - $!\n";
        }
        if ($filename eq '-') {
@@ -238,11 +244,11 @@ for my $filename (@ARGV) {
        } else {
                $vname = $filename;
        }
-       while (<FILE>) {
+       while (<$FILE>) {
                chomp;
                push(@rawlines, $_);
        }
-       close(FILE);
+       close($FILE);
        if (!process($filename)) {
                $exit = 1;
        }