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-rw-r--r--perl-install/network/ethernet.pm5
1 files changed, 3 insertions, 2 deletions
diff --git a/perl-install/network/ethernet.pm b/perl-install/network/ethernet.pm
index fc53e28a5..5e95e25c8 100644
--- a/perl-install/network/ethernet.pm
+++ b/perl-install/network/ethernet.pm
@@ -37,8 +37,9 @@ qq(
sub mapIntfToDevice {
my ($interface) = @_;
- my ($bus, $slot, $func) = map { hex($_) } (c::getHwIDs($interface) =~ /([0-9a-f]+):([0-9a-f]+)\.([0-9a-f]+)/);
- grep { $_->{pci_bus} == $bus && $_->{pci_device} == $slot && $_->{pci_function} == $func } detect_devices::probeall();
+ my $hw_addr = c::getHwIDs($interface);
+ my ($bus, $slot, $func) = map { hex($_) } ($hw_addr =~ /([0-9a-f]+):([0-9a-f]+)\.([0-9a-f]+)/);
+ $hw_addr ? grep { $_->{pci_bus} == $bus && $_->{pci_device} == $slot && $_->{pci_function} == $func } detect_devices::probeall() : {};
}