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@@ -179,9 +179,6 @@ static int acpi_pci_link_get_possible(struct acpi_pci_link *link)
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{
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acpi_status status;
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- if (!link)
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- return -EINVAL;
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-
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status = acpi_walk_resources(link->device->handle, METHOD_NAME__PRS,
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acpi_pci_link_check_possible, link);
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if (ACPI_FAILURE(status)) {
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@@ -259,9 +256,6 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
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acpi_status status;
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int irq = 0;
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- if (!link)
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- return -EINVAL;
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-
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link->irq.active = 0;
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/* in practice, status disabled is meaningless, ignore it */
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@@ -314,7 +308,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
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} *resource;
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struct acpi_buffer buffer = { 0, NULL };
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- if (!link || !irq)
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+ if (!irq)
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return -EINVAL;
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resource = kzalloc(sizeof(*resource) + 1, irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL);
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@@ -712,9 +706,6 @@ static int acpi_pci_link_add(struct acpi_device *device)
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int i;
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int found = 0;
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- if (!device)
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- return -EINVAL;
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-
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link = kzalloc(sizeof(struct acpi_pci_link), GFP_KERNEL);
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if (!link)
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return -ENOMEM;
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@@ -795,9 +786,6 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type)
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{
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struct acpi_pci_link *link;
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- if (!device || !acpi_driver_data(device))
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- return -EINVAL;
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-
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link = acpi_driver_data(device);
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mutex_lock(&acpi_link_lock);
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