ACPI: PCI: remove unnecessary null pointer checks (3b8249de) · Commits · 戴 / test

drivers/acpi/pci_irq.c

+0 −18

Original line number	Diff line number	Diff line
		@@ -178,10 +178,6 @@ acpi_pci_irq_add_entry(acpi_handle handle,
		{
		struct acpi_prt_entry *entry = NULL;


		if (!prt)
		return -EINVAL;

		entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
		if (!entry)
		return -ENOMEM;
		@@ -432,9 +428,6 @@ acpi_pci_irq_derive(struct pci_dev *dev,
		u8 bridge_pin = 0, orig_pin = pin;


		if (!dev)
		return -EINVAL;

		/*
		* Attempt to derive an IRQ for this device from a parent bridge's
		* PCI interrupt routing entry (eg. yenta bridge and add-in card bridge).
		@@ -491,9 +484,6 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
		int rc;


		if (!dev)
		return -EINVAL;

		pin = dev->pin;
		if (!pin) {
		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
		@@ -503,11 +493,6 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
		}
		pin--;

		if (!dev->bus) {
		dev_err(&dev->dev, "invalid (NULL) 'bus' field\n");
		return -ENODEV;
		}

		/*
		* First we check the PCI IRQ routing table (PRT) for an IRQ. PRT
		* values override any BIOS-assigned IRQs set during boot.
		@@ -586,9 +571,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
		int polarity = ACPI_ACTIVE_LOW;


		if (!dev \|\| !dev->bus)
		return;

		pin = dev->pin;
		if (!pin)
		return;