headers_install: use local file handles
Better practice to use 3 arg open and local file handles.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: WANG Cong <amwang@redhat.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
index b89ca2c..4ca3be3 100644
--- a/scripts/headers_install.pl
+++ b/scripts/headers_install.pl
@@ -23,13 +23,13 @@
my $unifdef = "scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__";
foreach my $file (@files) {
- local *INFILE;
- local *OUTFILE;
my $tmpfile = "$installdir/$file.tmp";
- open(INFILE, "<$readdir/$file")
- or die "$readdir/$file: $!\n";
- open(OUTFILE, ">$tmpfile") or die "$tmpfile: $!\n";
- while (my $line = <INFILE>) {
+
+ open(my $in, '<', "$readdir/$file")
+ or die "$readdir/$file: $!\n";
+ open(my $out, '>', $tmpfile)
+ or die "$tmpfile: $!\n";
+ while (my $line = <$in>) {
$line =~ s/([\s(])__user\s/$1/g;
$line =~ s/([\s(])__force\s/$1/g;
$line =~ s/([\s(])__iomem\s/$1/g;
@@ -39,10 +39,11 @@
$line =~ s/(^|\s)(inline)\b/$1__$2__/g;
$line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g;
$line =~ s/(^|\s|[(])(volatile)\b(\s|[(]|$)/$1__$2__$3/g;
- printf OUTFILE "%s", $line;
+ printf {$out} "%s", $line;
}
- close OUTFILE;
- close INFILE;
+ close $out;
+ close $in;
+
system $unifdef . " $tmpfile > $installdir/$file";
unlink $tmpfile;
}