diff options
Diffstat (limited to 'drivers/gpu/vga/vgaarb.c')
| -rw-r--r-- | drivers/gpu/vga/vgaarb.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 3df8fc0ec01..e893f6e1937 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -141,7 +141,11 @@ EXPORT_SYMBOL_GPL(vga_default_device); void vga_set_default_device(struct pci_dev *pdev) { - vga_default = pdev; + if (vga_default == pdev) + return; + + pci_dev_put(vga_default); + vga_default = pci_dev_get(pdev); } #endif @@ -577,7 +581,7 @@ static bool vga_arbiter_add_pci_device(struct pci_dev *pdev) #ifndef __ARCH_HAS_VGA_DEFAULT_DEVICE if (vga_default == NULL && ((vgadev->owns & VGA_RSRC_LEGACY_MASK) == VGA_RSRC_LEGACY_MASK)) - vga_default = pci_dev_get(pdev); + vga_set_default_device(pdev); #endif vga_arbiter_check_bridge_sharing(vgadev); @@ -613,10 +617,8 @@ static bool vga_arbiter_del_pci_device(struct pci_dev *pdev) } #ifndef __ARCH_HAS_VGA_DEFAULT_DEVICE - if (vga_default == pdev) { - pci_dev_put(vga_default); - vga_default = NULL; - } + if (vga_default == pdev) + vga_set_default_device(NULL); #endif if (vgadev->decodes & (VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM)) @@ -1066,7 +1068,6 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf, } } else if (strncmp(curr_pos, "target ", 7) == 0) { - struct pci_bus *pbus; unsigned int domain, bus, devfn; struct vga_device *vgadev; @@ -1085,19 +1086,11 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf, pr_debug("vgaarb: %s ==> %x:%x:%x.%x\n", curr_pos, domain, bus, PCI_SLOT(devfn), PCI_FUNC(devfn)); - pbus = pci_find_bus(domain, bus); - pr_debug("vgaarb: pbus %p\n", pbus); - if (pbus == NULL) { - pr_err("vgaarb: invalid PCI domain and/or bus address %x:%x\n", - domain, bus); - ret_val = -ENODEV; - goto done; - } - pdev = pci_get_slot(pbus, devfn); + pdev = pci_get_domain_bus_and_slot(domain, bus, devfn); pr_debug("vgaarb: pdev %p\n", pdev); if (!pdev) { - pr_err("vgaarb: invalid PCI address %x:%x\n", - bus, devfn); + pr_err("vgaarb: invalid PCI address %x:%x:%x\n", + domain, bus, devfn); ret_val = -ENODEV; goto done; } |