Kernel: Construct PCIDeviceAttributeSysFSComponent with StringViews

There is no use to create a temporary String of a char const* to just
cast it to a StringView on SysFSComponent construction again.
Also this could have lead to a UAF bug.

Kernel/Bus/PCI/SysFSPCI.cpp

@@ -21,14 +21,14 @@ UNMAP_AFTER_INIT PCIDeviceSysFSDirectory::PCIDeviceSysFSDirectory(const SysFSDir
     : SysFSDirectory(String::formatted("{:04x}:{:02x}:{:02x}.{}", address.domain(), address.bus(), address.device(), address.function()), parent_directory)
     , m_address(address)
 {
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("vendor", *this, PCI::RegisterOffset::VENDOR_ID, 2));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("device_id", *this, PCI::RegisterOffset::DEVICE_ID, 2));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("class", *this, PCI::RegisterOffset::CLASS, 1));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("subclass", *this, PCI::RegisterOffset::SUBCLASS, 1));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("revision", *this, PCI::RegisterOffset::REVISION_ID, 1));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("progif", *this, PCI::RegisterOffset::PROG_IF, 1));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("subsystem_vendor", *this, PCI::RegisterOffset::SUBSYSTEM_VENDOR_ID, 2));
-    m_components.append(PCIDeviceAttributeSysFSComponent::create("subsystem_id", *this, PCI::RegisterOffset::SUBSYSTEM_ID, 2));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("vendor"sv, *this, PCI::RegisterOffset::VENDOR_ID, 2));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("device_id"sv, *this, PCI::RegisterOffset::DEVICE_ID, 2));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("class"sv, *this, PCI::RegisterOffset::CLASS, 1));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("subclass"sv, *this, PCI::RegisterOffset::SUBCLASS, 1));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("revision"sv, *this, PCI::RegisterOffset::REVISION_ID, 1));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("progif"sv, *this, PCI::RegisterOffset::PROG_IF, 1));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("subsystem_vendor"sv, *this, PCI::RegisterOffset::SUBSYSTEM_VENDOR_ID, 2));
+    m_components.append(PCIDeviceAttributeSysFSComponent::create("subsystem_id"sv, *this, PCI::RegisterOffset::SUBSYSTEM_ID, 2));
 }
 
 UNMAP_AFTER_INIT void PCIBusSysFSDirectory::initialize()
@@ -46,12 +46,12 @@ UNMAP_AFTER_INIT PCIBusSysFSDirectory::PCIBusSysFSDirectory()
     });
 }
 
-NonnullRefPtr<PCIDeviceAttributeSysFSComponent> PCIDeviceAttributeSysFSComponent::create(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width)
+NonnullRefPtr<PCIDeviceAttributeSysFSComponent> PCIDeviceAttributeSysFSComponent::create(StringView name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width)
 {
     return adopt_ref(*new (nothrow) PCIDeviceAttributeSysFSComponent(name, device, offset, field_bytes_width));
 }
 
-PCIDeviceAttributeSysFSComponent::PCIDeviceAttributeSysFSComponent(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width)
+PCIDeviceAttributeSysFSComponent::PCIDeviceAttributeSysFSComponent(StringView name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width)
     : SysFSComponent(name)
     , m_device(device)
     , m_offset(offset)

Kernel/Bus/PCI/SysFSPCI.h

@@ -34,14 +34,14 @@ private:
 
 class PCIDeviceAttributeSysFSComponent : public SysFSComponent {
 public:
-    static NonnullRefPtr<PCIDeviceAttributeSysFSComponent> create(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
+    static NonnullRefPtr<PCIDeviceAttributeSysFSComponent> create(StringView name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
 
     virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
     virtual ~PCIDeviceAttributeSysFSComponent() {};
 
 protected:
     ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
-    PCIDeviceAttributeSysFSComponent(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
+    PCIDeviceAttributeSysFSComponent(StringView name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
     NonnullRefPtr<PCIDeviceSysFSDirectory> m_device;
     PCI::RegisterOffset m_offset;
     size_t m_field_bytes_width;