PCI Hotplug: fix i_nlink for root inode in pcihpfs

drivers/hotplug/pci_hotplug_core.c

@@ -109,6 +109,9 @@ static struct inode *pcihpfs_get_inode (struct super_block *sb, int mode, int de
 		case S_IFDIR:
 			inode->i_op = &pcihpfs_dir_inode_operations;
 			inode->i_fop = &simple_dir_operations;
+
+			/* directory inodes start off with i_nlink == 2 (for "." entry) */
+			inode->i_nlink++;
 			break;
 		}
 	}