Kernel/Audio: Don't try to enumerate PCI adapters if PCI is disabled

Author: supercomputer7

Kernel/Devices/Audio/Management.cpp

@@ -38,21 +38,23 @@ UNMAP_AFTER_INIT AudioManagement::AudioManagement()
 
 UNMAP_AFTER_INIT void AudioManagement::enumerate_hardware_controllers()
 {
-    PCI::enumerate([&](PCI::DeviceIdentifier const& device_identifier) {
-        // Note: Only consider PCI audio controllers
-        if (device_identifier.class_code().value() != to_underlying(PCI::ClassID::Multimedia)
-            || device_identifier.subclass_code().value() != to_underlying(PCI::Multimedia::SubclassID::AudioController))
-            return;
+    if (!PCI::Access::is_disabled()) {
+        PCI::enumerate([&](PCI::DeviceIdentifier const& device_identifier) {
+            // Note: Only consider PCI audio controllers
+            if (device_identifier.class_code().value() != to_underlying(PCI::ClassID::Multimedia)
+                || device_identifier.subclass_code().value() != to_underlying(PCI::Multimedia::SubclassID::AudioController))
+                return;
 
-        dbgln("AC97: found audio controller at {}", device_identifier.address());
-        auto ac97_device = AC97::try_create(device_identifier);
-        if (ac97_device.is_error()) {
-            // FIXME: Propagate errors properly
-            dbgln("AudioManagement: failed to initialize AC97 device: {}", ac97_device.error());
-            return;
-        }
-        m_controllers_list.append(ac97_device.release_value());
-    });
+            dbgln("AC97: found audio controller at {}", device_identifier.address());
+            auto ac97_device = AC97::try_create(device_identifier);
+            if (ac97_device.is_error()) {
+                // FIXME: Propagate errors properly
+                dbgln("AudioManagement: failed to initialize AC97 device: {}", ac97_device.error());
+                return;
+            }
+            m_controllers_list.append(ac97_device.release_value());
+        });
+    }
 }
 
 UNMAP_AFTER_INIT void AudioManagement::enumerate_hardware_audio_channels()