ipwireless: make more use of pcmcia_loop_config()

Within the pcmcia_loop_config() callback, we already have all
tuple data available we need. Also add a fix to release the IO
resource (at least within pcmcia_loop_config() error path).

CC: Jiri Kosina <jkosina@suse.cz>
CC: David Sterba <dsterba@suse.cz>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index 263a18f..0f46749 100644 (file)
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -79,12 +79,18 @@ static void signalled_reboot_callback(void *callback_data)
        schedule_work(&ipw->work_reboot);
 }
 
-static int ipwireless_ioprobe(struct pcmcia_device *p_dev,
-                             cistpl_cftable_entry_t *cfg,
-                             cistpl_cftable_entry_t *dflt,
-                             unsigned int vcc,
-                             void *priv_data)
+static int ipwireless_probe(struct pcmcia_device *p_dev,
+                           cistpl_cftable_entry_t *cfg,
+                           cistpl_cftable_entry_t *dflt,
+                           unsigned int vcc,
+                           void *priv_data)
 {
+       struct ipw_dev *ipw = priv_data;
+       struct resource *io_resource;
+       memreq_t memreq_attr_memory;
+       memreq_t memreq_common_memory;
+       int ret;
+
        p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
        p_dev->io.BasePort1 = cfg->io.win[0].base;
        p_dev->io.NumPorts1 = cfg->io.win[0].len;
@@ -95,133 +101,118 @@ static int ipwireless_ioprobe(struct pcmcia_device *p_dev,
        /* 0x40 causes it to generate level mode interrupts. */
        /* 0x04 enables IREQ pin. */
        p_dev->conf.ConfigIndex = cfg->index | 0x44;
-       return pcmcia_request_io(p_dev, &p_dev->io);
-}
+       ret = pcmcia_request_io(p_dev, &p_dev->io);
+       if (ret)
+               return ret;
 
-static int config_ipwireless(struct ipw_dev *ipw)
-{
-       struct pcmcia_device *link = ipw->link;
-       int ret = 0;
-       tuple_t tuple;
-       unsigned short buf[64];
-       cisparse_t parse;
-       memreq_t memreq_attr_memory;
-       memreq_t memreq_common_memory;
+       io_resource = request_region(p_dev->io.BasePort1, p_dev->io.NumPorts1,
+                               IPWIRELESS_PCCARD_NAME);
 
-       ipw->is_v2_card = 0;
+       if (cfg->mem.nwin == 0)
+               return 0;
 
-       tuple.Attributes = 0;
-       tuple.TupleData = (cisdata_t *) buf;
-       tuple.TupleDataMax = sizeof(buf);
-       tuple.TupleOffset = 0;
+       ipw->request_common_memory.Attributes =
+               WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+       ipw->request_common_memory.Base = cfg->mem.win[0].host_addr;
+       ipw->request_common_memory.Size = cfg->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(&p_dev, &ipw->request_common_memory,
+                               &ipw->handle_common_memory);
 
-       ret = pcmcia_loop_config(link, ipwireless_ioprobe, NULL);
        if (ret != 0) {
-               cs_error(link, RequestIO, ret);
-               goto exit0;
+               cs_error(p_dev, RequestWindow, ret);
+               goto exit1;
        }
 
-       link->conf.Attributes = CONF_ENABLE_IRQ;
-       link->conf.IntType = INT_MEMORY_AND_IO;
-
-       link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
-       link->irq.Handler = ipwireless_interrupt;
-       link->irq.Instance = ipw->hardware;
+       memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr;
+       memreq_common_memory.Page = 0;
 
-       request_region(link->io.BasePort1, link->io.NumPorts1,
-                       IPWIRELESS_PCCARD_NAME);
-
-       /* memory settings */
-       tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+       ret = pcmcia_map_mem_page(ipw->handle_common_memory,
+                               &memreq_common_memory);
 
-       ret = pcmcia_get_first_tuple(link, &tuple);
        if (ret != 0) {
-               cs_error(link, GetFirstTuple, ret);
-               goto exit1;
+               cs_error(p_dev, MapMemPage, ret);
+               goto exit2;
        }
 
-       ret = pcmcia_get_tuple_data(link, &tuple);
+       ipw->is_v2_card = cfg->mem.win[0].len == 0x100;
 
-       if (ret != 0) {
-               cs_error(link, GetTupleData, ret);
-               goto exit1;
-       }
+       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);
+
+       ipw->request_attr_memory.Attributes =
+               WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
+       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_parse_tuple(&tuple, &parse);
+       ret = pcmcia_request_window(&p_dev, &ipw->request_attr_memory,
+                               &ipw->handle_attr_memory);
 
        if (ret != 0) {
-               cs_error(link, ParseTuple, ret);
-               goto exit1;
+               cs_error(p_dev, RequestWindow, ret);
+               goto exit2;
        }
 
-       if (parse.cftable_entry.mem.nwin > 0) {
-               ipw->request_common_memory.Attributes =
-                       WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
-               ipw->request_common_memory.Base =
-                       parse.cftable_entry.mem.win[0].host_addr;
-               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, &ipw->request_common_memory,
-                               &ipw->handle_common_memory);
-
-               if (ret != 0) {
-                       cs_error(link, RequestWindow, ret);
-                       goto exit1;
-               }
+       memreq_attr_memory.CardOffset = 0;
+       memreq_attr_memory.Page = 0;
 
-               memreq_common_memory.CardOffset =
-                       parse.cftable_entry.mem.win[0].card_addr;
-               memreq_common_memory.Page = 0;
+       ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
+                               &memreq_attr_memory);
 
-               ret = pcmcia_map_mem_page(ipw->handle_common_memory,
-                               &memreq_common_memory);
+       if (ret != 0) {
+               cs_error(p_dev, MapMemPage, ret);
+               goto exit3;
+       }
 
-               if (ret != 0) {
-                       cs_error(link, MapMemPage, ret);
-                       goto exit1;
-               }
+       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);
 
-               ipw->is_v2_card =
-                       parse.cftable_entry.mem.win[0].len == 0x100;
+       return 0;
 
-               ipw->common_memory = ioremap(ipw->request_common_memory.Base,
+exit3:
+       pcmcia_release_window(ipw->handle_attr_memory);
+exit2:
+       if (ipw->common_memory) {
+               release_mem_region(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);
-
-               ipw->request_attr_memory.Attributes =
-                       WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE;
-               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, &ipw->request_attr_memory,
-                               &ipw->handle_attr_memory);
+               iounmap(ipw->common_memory);
+               pcmcia_release_window(ipw->handle_common_memory);
+       } else
+               pcmcia_release_window(ipw->handle_common_memory);
+exit1:
+       release_resource(io_resource);
+       pcmcia_disable_device(p_dev);
+       return -1;
+}
 
-               if (ret != 0) {
-                       cs_error(link, RequestWindow, ret);
-                       goto exit2;
-               }
+static int config_ipwireless(struct ipw_dev *ipw)
+{
+       struct pcmcia_device *link = ipw->link;
+       int ret = 0;
 
-               memreq_attr_memory.CardOffset = 0;
-               memreq_attr_memory.Page = 0;
+       ipw->is_v2_card = 0;
 
-               ret = pcmcia_map_mem_page(ipw->handle_attr_memory,
-                               &memreq_attr_memory);
+       ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
+       if (ret != 0) {
+               cs_error(link, RequestIO, ret);
+               return ret;
+       }
 
-               if (ret != 0) {
-                       cs_error(link, MapMemPage, ret);
-                       goto exit2;
-               }
+       link->conf.Attributes = CONF_ENABLE_IRQ;
+       link->conf.IntType = INT_MEMORY_AND_IO;
 
-               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);
-       }
+       link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
+       link->irq.Handler = ipwireless_interrupt;
+       link->irq.Instance = ipw->hardware;
 
        INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
 
@@ -234,7 +225,7 @@ static int config_ipwireless(struct ipw_dev *ipw)
 
        if (ret != 0) {
                cs_error(link, RequestIRQ, ret);
-               goto exit3;
+               goto exit;
        }
 
        printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
@@ -257,12 +248,12 @@ static int config_ipwireless(struct ipw_dev *ipw)
 
        ipw->network = ipwireless_network_create(ipw->hardware);
        if (!ipw->network)
-               goto exit3;
+               goto exit;
 
        ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network,
                        ipw->nodes);
        if (!ipw->tty)
-               goto exit3;
+               goto exit;
 
        ipwireless_init_hardware_v2_v3(ipw->hardware);
 
@@ -274,33 +265,27 @@ static int config_ipwireless(struct ipw_dev *ipw)
 
        if (ret != 0) {
                cs_error(link, RequestConfiguration, ret);
-               goto exit4;
+               goto exit;
        }
 
        link->dev_node = &ipw->nodes[0];
 
        return 0;
 
-exit4:
-       pcmcia_disable_device(link);
-exit3:
+exit:
        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);
        }
-exit1:
        pcmcia_disable_device(link);
-exit0:
        return -1;
 }