Staging: ipack/bridges/tpci200: remove linked list of registered devices

The linked list of registered devices is not needed as the struct
tpci200_board is saved in private data field of the pci device.

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c
index a7fb2cfe51ee37520cd58fcc96d14173405a56cc..cee25c78a11a43a8ac9542dd014cf30502874c4a 100644 (file)
--- a/drivers/staging/ipack/bridges/tpci200.c
+++ b/drivers/staging/ipack/bridges/tpci200.c
@@ -24,28 +24,20 @@ static int control_reg[] = {
        TPCI200_CONTROL_D_REG
 };
 
-/* Linked list to save the registered devices */
-static LIST_HEAD(tpci200_list);
-
 static int tpci200_slot_unregister(struct ipack_device *dev);
 
 static struct tpci200_board *check_slot(struct ipack_device *dev)
 {
        struct tpci200_board *tpci200;
-       int found = 0;
 
        if (dev == NULL)
                return NULL;
 
-       list_for_each_entry(tpci200, &tpci200_list, list) {
-               if (tpci200->number == dev->bus_nr) {
-                       found = 1;
-                       break;
-               }
-       }
 
-       if (!found) {
-               dev_err(&dev->dev, "Carrier not found\n");
+       tpci200 = dev_get_drvdata(dev->bus->parent);
+
+       if (tpci200 == NULL) {
+               dev_info(&dev->dev, "carrier board not found\n");
                return NULL;
        }
 
@@ -831,8 +823,6 @@ static int tpci200_pciprobe(struct pci_dev *pdev,
        /* save the bus number given by ipack to logging purpose */
        tpci200->number = tpci200->info->ipack_bus->bus_nr;
        dev_set_drvdata(&pdev->dev, tpci200);
-       /* add the registered device in an internal linked list */
-       list_add_tail(&tpci200->list, &tpci200_list);
 
        /*
         * Give the same IRQ number as the slot number.
@@ -847,7 +837,6 @@ static int tpci200_pciprobe(struct pci_dev *pdev,
 static void __tpci200_pci_remove(struct tpci200_board *tpci200)
 {
        tpci200_uninstall(tpci200);
-       list_del(&tpci200->list);
        ipack_bus_unregister(tpci200->info->ipack_bus);
        kfree(tpci200->info);
        kfree(tpci200);
@@ -855,15 +844,9 @@ static void __tpci200_pci_remove(struct tpci200_board *tpci200)
 
 static void __devexit tpci200_pci_remove(struct pci_dev *dev)
 {
-       struct tpci200_board *tpci200, *next;
+       struct tpci200_board *tpci200 = pci_get_drvdata(dev);
 
-       /* Search the registered device to uninstall it */
-       list_for_each_entry_safe(tpci200, next, &tpci200_list, list) {
-               if (tpci200->info->pdev == dev) {
-                       __tpci200_pci_remove(tpci200);
-                       break;
-               }
-       }
+       __tpci200_pci_remove(tpci200);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(tpci200_idtable) = {
@@ -888,11 +871,6 @@ static int __init tpci200_drvr_init_module(void)
 
 static void __exit tpci200_drvr_exit_module(void)
 {
-       struct tpci200_board *tpci200, *next;
-
-       list_for_each_entry_safe(tpci200, next, &tpci200_list, list)
-               __tpci200_pci_remove(tpci200);
-
        pci_unregister_driver(&tpci200_pci_drv);
 }