ipwireless: Explicitly request io and mem regions

ipwireless: Explicitly request io and mem regions

Documentation/pcmcia/driver-changes.txt says, that driver should call request_region
for used memory/io regions since PCMCIA does not do this (since 2.6.8).

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 50 insertions, 34 deletions

diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 6bdd11df4584..7169a0d3379a 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -88,8 +88,6 @@ static int config_ipwireless(struct ipw_dev *ipw)
         unsigned short buf[64];
         cisparse_t parse;
         unsigned short cor_value;
-        win_req_t request_attr_memory;
-        win_req_t request_common_memory;
         memreq_t memreq_attr_memory;
         memreq_t memreq_common_memory;
 
@@ -188,6 +186,9 @@ static int config_ipwireless(struct ipw_dev *ipw)
                 goto exit0;
         }
 
+        request_region(link->io.BasePort1, link->io.NumPorts1,
+                        IPWIRELESS_PCCARD_NAME);
+
         /* memory settings */
 
         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
@@ -214,16 +215,16 @@ static int config_ipwireless(struct ipw_dev *ipw)
         }
 
         if (parse.cftable_entry.mem.nwin > 0) {
-                request_common_memory.Attributes =
+                ipw->request_common_memory.Attributes =
                         WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
-                request_common_memory.Base =
+                ipw->request_common_memory.Base =
                         parse.cftable_entry.mem.win[0].host_addr;
-                request_common_memory.Size = parse.cftable_entry.mem.win[0].len;
-                if (request_common_memory.Size < 0x1000)
-                        request_common_memory.Size = 0x1000;
-                request_common_memory.AccessSpeed = 0;
+                ipw->request_common_memory.Size = parse.cftable_entry.mem.win[0].len;
+                if (ipw->request_common_memory.Size < 0x1000)
+                        ipw->request_common_memory.Size = 0x1000;
+                ipw->request_common_memory.AccessSpeed = 0;
 
-                ret = pcmcia_request_window(&link, &request_common_memory,
+                ret = pcmcia_request_window(&link, &ipw->request_common_memory,
                                 &ipw->handle_common_memory);
 
                 if (ret != CS_SUCCESS) {
@@ -246,16 +247,18 @@ static int config_ipwireless(struct ipw_dev *ipw)
                 ipw->is_v2_card =
                         parse.cftable_entry.mem.win[0].len == 0x100;
 
-                ipw->common_memory = ioremap(request_common_memory.Base,
-                                request_common_memory.Size);
+                ipw->common_memory = ioremap(ipw->request_common_memory.Base,
+                                ipw->request_common_memory.Size);
+                request_mem_region(ipw->request_common_memory.Base,
+                                ipw->request_common_memory.Size, IPWIRELESS_PCCARD_NAME);
 
-                request_attr_memory.Attributes =
+                ipw->request_attr_memory.Attributes =
                         WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
-                request_attr_memory.Base = 0;
-                request_attr_memory.Size = 0;   /* this used to be 0x1000 */
-                request_attr_memory.AccessSpeed = 0;
+                ipw->request_attr_memory.Base = 0;
+                ipw->request_attr_memory.Size = 0;      /* this used to be 0x1000 */
+                ipw->request_attr_memory.AccessSpeed = 0;
 
-                ret = pcmcia_request_window(&link, &request_attr_memory,
+                ret = pcmcia_request_window(&link, &ipw->request_attr_memory,
                                 &ipw->handle_attr_memory);
 
                 if (ret != CS_SUCCESS) {
@@ -274,8 +277,10 @@ static int config_ipwireless(struct ipw_dev *ipw)
                         goto exit2;
                 }
 
-                ipw->attr_memory = ioremap(request_attr_memory.Base,
-                                request_attr_memory.Size);
+                ipw->attr_memory = ioremap(ipw->request_attr_memory.Base,
+                                ipw->request_attr_memory.Size);
+                request_mem_region(ipw->request_attr_memory.Base, ipw->request_attr_memory.Size,
+                                IPWIRELESS_PCCARD_NAME);
         }
 
         INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
@@ -312,12 +317,12 @@ static int config_ipwireless(struct ipw_dev *ipw)
         if (ipw->attr_memory && ipw->common_memory)
                 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
                         ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
-                        request_attr_memory.Base,
-                        request_attr_memory.Base
-                        + request_attr_memory.Size - 1,
-                        request_common_memory.Base,
-                        request_common_memory.Base
-                        + request_common_memory.Size - 1);
+                        ipw->request_attr_memory.Base,
+                        ipw->request_attr_memory.Base
+                        + ipw->request_attr_memory.Size - 1,
+                        ipw->request_common_memory.Base,
+                        ipw->request_common_memory.Base
+                        + ipw->request_common_memory.Size - 1);
 
         ipw->network = ipwireless_network_create(ipw->hardware);
         if (!ipw->network)
@@ -349,12 +354,16 @@ exit4:
         pcmcia_disable_device(link);
 exit3:
         if (ipw->attr_memory) {
+                release_mem_region(ipw->request_attr_memory.Base,
+                                ipw->request_attr_memory.Size);
                 iounmap(ipw->attr_memory);
                 pcmcia_release_window(ipw->handle_attr_memory);
                 pcmcia_disable_device(link);
         }
 exit2:
         if (ipw->common_memory) {
+                release_mem_region(ipw->request_common_memory.Base,
+                                ipw->request_common_memory.Size);
                 iounmap(ipw->common_memory);
                 pcmcia_release_window(ipw->handle_common_memory);
         }
@@ -366,19 +375,25 @@ exit0:
 
 static void release_ipwireless(struct ipw_dev *ipw)
 {
-        struct pcmcia_device *link = ipw->link;
-
-        pcmcia_disable_device(link);
+        pcmcia_disable_device(ipw->link);
 
-        if (ipw->common_memory)
+        if (ipw->common_memory) {
+                release_mem_region(ipw->request_common_memory.Base,
+                                ipw->request_common_memory.Size);
                 iounmap(ipw->common_memory);
-        if (ipw->attr_memory)
+        }
+        if (ipw->attr_memory) {
+                release_mem_region(ipw->request_attr_memory.Base,
+                                ipw->request_attr_memory.Size);
                 iounmap(ipw->attr_memory);
+        }
         if (ipw->common_memory)
                 pcmcia_release_window(ipw->handle_common_memory);
         if (ipw->attr_memory)
                 pcmcia_release_window(ipw->handle_attr_memory);
-        pcmcia_disable_device(link);
+
+        /* Break the link with Card Services */
+        pcmcia_disable_device(ipw->link);
 }
 
 /*
@@ -436,10 +451,6 @@ static void ipwireless_detach(struct pcmcia_device *link)
 
         release_ipwireless(ipw);
 
-        /* Break the link with Card Services */
-        if (link)
-                pcmcia_disable_device(link);
-
         if (ipw->tty != NULL)
                 ipwireless_tty_free(ipw->tty);
         if (ipw->network != NULL)
diff --git a/drivers/char/pcmcia/ipwireless/main.h b/drivers/char/pcmcia/ipwireless/main.h
index 1bfdcc8d47d6..0e0363af9ab2 100644
--- a/drivers/char/pcmcia/ipwireless/main.h
+++ b/drivers/char/pcmcia/ipwireless/main.h
@@ -45,10 +45,15 @@ struct ipw_tty;
 struct ipw_dev {
         struct pcmcia_device *link;
         int is_v2_card;
+
         window_handle_t handle_attr_memory;
         void __iomem *attr_memory;
+        win_req_t request_attr_memory;
+
         window_handle_t handle_common_memory;
         void __iomem *common_memory;
+        win_req_t request_common_memory;
+
         dev_node_t nodes[2];
         /* Reference to attribute memory, containing CIS data */
         void *attribute_memory;