[PATCH] pcmcia: remove dev_list from drivers

The linked list of devices managed by each PCMCIA driver is, in very most
cases, unused. Therefore, remove it from many drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 2 insertions, 15 deletions

diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index a95366366504..6e7a1a0ae015 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -122,8 +122,6 @@ static dev_info_t dev_info = "serial_cs";
 static dev_link_t *serial_attach(void);
 static void serial_detach(struct pcmcia_device *p_dev);
 
-static dev_link_t *dev_list = NULL;
-
 /*======================================================================
 
     After a card is removed, serial_remove() will unregister
@@ -234,8 +232,7 @@ static dev_link_t *serial_attach(void)
         link->conf.IntType = INT_MEMORY_AND_IO;
 
         /* Register with Card Services */
-        link->next = dev_list;
-        dev_list = link;
+        link->next = NULL; /* not needed */
         client_reg.dev_info = &dev_info;
         client_reg.Version = 0x0210;
         client_reg.event_callback_args.client_data = link;
@@ -262,17 +259,9 @@ static void serial_detach(struct pcmcia_device *p_dev)
 {
         dev_link_t *link = dev_to_instance(p_dev);
         struct serial_info *info = link->priv;
-        dev_link_t **linkp;
 
         DEBUG(0, "serial_detach(0x%p)\n", link);
 
-        /* Locate device structure */
-        for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
-                if (*linkp == link)
-                        break;
-        if (*linkp == NULL)
-                return;
-
         /*
          * Ensure any outstanding scheduled tasks are completed.
          */
@@ -283,8 +272,7 @@ static void serial_detach(struct pcmcia_device *p_dev)
          */
         serial_remove(link);
 
-        /* Unlink device structure, free bits */
-        *linkp = link->next;
+        /* free bits */
         kfree(info);
 }
 
@@ -871,7 +859,6 @@ static int __init init_serial_cs(void)
 static void __exit exit_serial_cs(void)
 {
         pcmcia_unregister_driver(&serial_cs_driver);
-        BUG_ON(dev_list != NULL);
 }
 
 module_init(init_serial_cs);