1 files changed, 43 insertions, 1 deletions

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 6309c5a2528f..afd2fbf7d797 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -979,7 +979,12 @@ static ssize_t reset_store(struct device *dev,
 
         if (val != 1)
                 return -EINVAL;
-        return pci_reset_function(pdev);
+
+        result = pci_reset_function(pdev);
+        if (result < 0)
+                return result;
+
+        return count;
 }
 
 static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_store);
@@ -1030,6 +1035,39 @@ error:
         return retval;
 }
 
+static void pci_remove_slot_links(struct pci_dev *dev)
+{
+        char func[10];
+        struct pci_slot *slot;
+
+        sysfs_remove_link(&dev->dev.kobj, "slot");
+        list_for_each_entry(slot, &dev->bus->slots, list) {
+                if (slot->number != PCI_SLOT(dev->devfn))
+                        continue;
+                snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
+                sysfs_remove_link(&slot->kobj, func);
+        }
+}
+
+static int pci_create_slot_links(struct pci_dev *dev)
+{
+        int result = 0;
+        char func[10];
+        struct pci_slot *slot;
+
+        list_for_each_entry(slot, &dev->bus->slots, list) {
+                if (slot->number != PCI_SLOT(dev->devfn))
+                        continue;
+                result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot");
+                if (result)
+                        goto out;
+                snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn));
+                result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func);
+        }
+out:
+        return result;
+}
+
 int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
 {
         int retval;
@@ -1092,6 +1130,8 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
         if (retval)
                 goto err_vga_file;
 
+        pci_create_slot_links(pdev);
+
         return 0;
 
 err_vga_file:
@@ -1141,6 +1181,8 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev)
         if (!sysfs_initialized)
                 return;
 
+        pci_remove_slot_links(pdev);
+
         pci_remove_capabilities_sysfs(pdev);
 
         if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE)