perl_checker cleanups

1 files changed, 4 insertions, 3 deletions

diff --git a/t/helper.pm b/t/helper.pm
index 58b049e..538a9ae 100644
--- a/t/helper.pm
+++ b/t/helper.pm
@@ -4,7 +4,7 @@ use strict;
 use base 'Exporter';
 our @EXPORT = qw(can_create_fake_media create_fake_media find_mount_point remove_fake_media );
 
-sub can_create_fake_media {
+sub can_create_fake_media() {
     system("modprobe -n scsi_debug") == 0;
 }
 
@@ -16,7 +16,7 @@ sub create_fake_media {
     my @paths = glob("/sys/bus/pseudo/drivers/scsi_debug/adapter0/host*/target*/*:*/block/*");
     @paths == 1
       or die "Unexpected number of scsi_debug devices\n";
-    my ($prefix, $device) = split("block/", $paths[0]);
+    my ($_prefix, $device) = split("block/", $paths[0]);
     if ($o_delay) {
         system("echo 'sleep $o_delay; dd if=t/cdroms-test.iso of=/dev/$device conv=nocreat' | at -M now >& /dev/null") == 0
           or die "Failed to schedule copy of ISO to fake SCSI device\n";
@@ -27,7 +27,7 @@ sub create_fake_media {
     $device;
 }
 
-sub remove_fake_media {
+sub remove_fake_media() {
     my $tries = 0;
     while (system("modprobe -r -q scsi_debug") != 0) {
         ++$tries < 5 or die "Failed to remove scsi_debug kernel module\n";
@@ -38,6 +38,7 @@ sub remove_fake_media {
 sub find_mount_point {
     my ($device) = @_;
     open(my $fh, '<', '/proc/mounts') or die "Couldn't read /proc/mounts\n";
+    local $_;
     while (<$fh>) {
         my ($device_path, $mount_point) = split(' ', $_);
         return $mount_point if $device_path eq "/dev/$device";