PCI/sysfs: Tidy SMBIOS & ACPI label attributes

Update coding style to reduce distraction.  No functional change intended.

[bhelgaas: split to separate patch]
Link: https://lore.kernel.org/r/20210416205856.3234481-6-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/pci-label.c

@@ -36,9 +36,8 @@
 static bool device_has_acpi_name(struct device *dev)
 {
 #ifdef CONFIG_ACPI
-	acpi_handle handle;
+	acpi_handle handle = ACPI_HANDLE(dev);
 
-	handle = ACPI_HANDLE(dev);
 	if (!handle)
 		return false;
 
@@ -61,13 +60,9 @@ static size_t find_smbios_instance_string(struct pci_dev *pdev, char *buf,
 {
 	const struct dmi_device *dmi;
 	struct dmi_dev_onboard *donboard;
-	int domain_nr;
+	int domain_nr = pci_domain_nr(pdev->bus);
-	int bus;
+	int bus = pdev->bus->number;
-	int devfn;
+	int devfn = pdev->devfn;
-
-	domain_nr = pci_domain_nr(pdev->bus);
-	bus = pdev->bus->number;
-	devfn = pdev->devfn;
 
 	dmi = NULL;
 	while ((dmi = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD,
@@ -95,11 +90,8 @@ static size_t find_smbios_instance_string(struct pci_dev *pdev, char *buf,
 static umode_t smbios_attr_is_visible(struct kobject *kobj, struct attribute *a,
 				      int n)
 {
-	struct device *dev;
+	struct device *dev = kobj_to_dev(kobj);
-	struct pci_dev *pdev;
+	struct pci_dev *pdev = to_pci_dev(dev);
-
-	dev = kobj_to_dev(kobj);
-	pdev = to_pci_dev(dev);
 
 	if (device_has_acpi_name(dev))
 		return 0;
@@ -113,8 +105,7 @@ static umode_t smbios_attr_is_visible(struct kobject *kobj, struct attribute *a,
 static ssize_t smbios_label_show(struct device *dev,
 				 struct device_attribute *attr, char *buf)
 {
-	struct pci_dev *pdev;
+	struct pci_dev *pdev = to_pci_dev(dev);
-	pdev = to_pci_dev(dev);
 
 	return find_smbios_instance_string(pdev, buf,
 					   SMBIOS_ATTR_LABEL_SHOW);
@@ -125,8 +116,7 @@ static struct device_attribute dev_attr_smbios_label = __ATTR(label, 0444,
 static ssize_t index_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
-	struct pci_dev *pdev;
+	struct pci_dev *pdev = to_pci_dev(dev);
-	pdev = to_pci_dev(dev);
 
 	return find_smbios_instance_string(pdev, buf,
 					   SMBIOS_ATTR_INSTANCE_SHOW);
@@ -164,11 +154,10 @@ static void dsm_label_utf16s_to_utf8s(union acpi_object *obj, char *buf)
 static int dsm_get_label(struct device *dev, char *buf,
 			 enum acpi_attr_enum attr)
 {
-	acpi_handle handle;
+	acpi_handle handle = ACPI_HANDLE(dev);
 	union acpi_object *obj, *tmp;
 	int len = -1;
 
-	handle = ACPI_HANDLE(dev);
 	if (!handle)
 		return -1;
 
@@ -207,9 +196,7 @@ static int dsm_get_label(struct device *dev, char *buf,
 static umode_t acpi_attr_is_visible(struct kobject *kobj, struct attribute *a,
 				    int n)
 {
-	struct device *dev;
+	struct device *dev = kobj_to_dev(kobj);
-
-	dev = kobj_to_dev(kobj);
 
 	if (!device_has_acpi_name(dev))
 		return 0;