[PATCH] pcmcia: embed dev_link_t into struct pcmcia_device

Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.

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

5 files changed, 54 insertions, 82 deletions

diff --git a/drivers/isdn/hardware/avm/avm_cs.c b/drivers/isdn/hardware/avm/avm_cs.c
index 0c504dc49acf..3b7461ece505 100644
--- a/drivers/isdn/hardware/avm/avm_cs.c
+++ b/drivers/isdn/hardware/avm/avm_cs.c
@@ -101,49 +101,37 @@ typedef struct local_info_t {
 
 static int avmcs_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     local_info_t *local;
 
-    /* Initialize the dev_link_t structure */
-    link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-    if (!link)
-        goto err;
-    memset(link, 0, sizeof(struct dev_link_t));
-
     /* The io structure describes IO port mapping */
-    link->io.NumPorts1 = 16;
-    link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
-    link->io.NumPorts2 = 0;
+    p_dev->io.NumPorts1 = 16;
+    p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+    p_dev->io.NumPorts2 = 0;
 
     /* Interrupt setup */
-    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-    link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+    p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+    p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+
+    p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
 
-    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-    
     /* General socket configuration */
-    link->conf.Attributes = CONF_ENABLE_IRQ;
-    link->conf.IntType = INT_MEMORY_AND_IO;
-    link->conf.ConfigIndex = 1;
-    link->conf.Present = PRESENT_OPTION;
+    p_dev->conf.Attributes = CONF_ENABLE_IRQ;
+    p_dev->conf.IntType = INT_MEMORY_AND_IO;
+    p_dev->conf.ConfigIndex = 1;
+    p_dev->conf.Present = PRESENT_OPTION;
 
     /* Allocate space for private device-specific data */
     local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
     if (!local)
-        goto err_kfree;
+        goto err;
     memset(local, 0, sizeof(local_info_t));
-    link->priv = local;
-
-    link->handle = p_dev;
-    p_dev->instance = link;
+    p_dev->priv = local;
 
-    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-    avmcs_config(link);
+    p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+    avmcs_config(p_dev);
 
     return 0;
 
- err_kfree:
-    kfree(link);
  err:
     return -EINVAL;
 } /* avmcs_attach */
@@ -165,7 +153,6 @@ static void avmcs_detach(struct pcmcia_device *p_dev)
         avmcs_release(link);
 
     kfree(link->priv);
-    kfree(link);
 } /* avmcs_detach */
 
 /*======================================================================
@@ -330,7 +317,7 @@ found_port:
 
     dev->node.major = 64;
     dev->node.minor = 0;
-    link->dev = &dev->node;
+    link->dev_node = &dev->node;
     
     link->state &= ~DEV_CONFIG_PENDING;
     /* If any step failed, release any partially configured state */
diff --git a/drivers/isdn/hisax/avma1_cs.c b/drivers/isdn/hisax/avma1_cs.c
index 8d23e5ab8d01..f7143fe1a2e7 100644
--- a/drivers/isdn/hisax/avma1_cs.c
+++ b/drivers/isdn/hisax/avma1_cs.c
@@ -118,50 +118,39 @@ typedef struct local_info_t {
 
 static int avma1cs_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     local_info_t *local;
 
     DEBUG(0, "avma1cs_attach()\n");
 
-    /* Initialize the dev_link_t structure */
-    link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-    if (!link)
-        return -ENOMEM;
-    memset(link, 0, sizeof(struct dev_link_t));
-
     /* Allocate space for private device-specific data */
     local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
-    if (!local) {
-        kfree(link);
+    if (!local)
         return -ENOMEM;
-    }
+
     memset(local, 0, sizeof(local_info_t));
-    link->priv = local;
+    p_dev->priv = local;
 
     /* The io structure describes IO port mapping */
-    link->io.NumPorts1 = 16;
-    link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
-    link->io.NumPorts2 = 16;
-    link->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
-    link->io.IOAddrLines = 5;
+    p_dev->io.NumPorts1 = 16;
+    p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+    p_dev->io.NumPorts2 = 16;
+    p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
+    p_dev->io.IOAddrLines = 5;
 
     /* Interrupt setup */
-    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-    link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+    p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+    p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
 
-    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+    p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
 
     /* General socket configuration */
-    link->conf.Attributes = CONF_ENABLE_IRQ;
-    link->conf.IntType = INT_MEMORY_AND_IO;
-    link->conf.ConfigIndex = 1;
-    link->conf.Present = PRESENT_OPTION;
-
-    link->handle = p_dev;
-    p_dev->instance = link;
+    p_dev->conf.Attributes = CONF_ENABLE_IRQ;
+    p_dev->conf.IntType = INT_MEMORY_AND_IO;
+    p_dev->conf.ConfigIndex = 1;
+    p_dev->conf.Present = PRESENT_OPTION;
 
-    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-    avma1cs_config(link);
+    p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+    avma1cs_config(p_dev);
 
     return 0;
 } /* avma1cs_attach */
@@ -185,7 +174,6 @@ static void avma1cs_detach(struct pcmcia_device *p_dev)
             avma1cs_release(link);
 
     kfree(link->priv);
-    kfree(link);
 } /* avma1cs_detach */
 
 /*======================================================================
@@ -335,7 +323,7 @@ found_port:
     strcpy(dev->node.dev_name, "A1");
     dev->node.major = 45;
     dev->node.minor = 0;
-    link->dev = &dev->node;
+    link->dev_node = &dev->node;
     
     link->state &= ~DEV_CONFIG_PENDING;
     /* If any step failed, release any partially configured state */
diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c
index 00835d537c10..bcda675e9103 100644
--- a/drivers/isdn/hisax/elsa_cs.c
+++ b/drivers/isdn/hisax/elsa_cs.c
@@ -121,7 +121,7 @@ static void elsa_cs_detach(struct pcmcia_device *p_dev);
 */
 
 typedef struct local_info_t {
-    dev_link_t          link;
+        struct pcmcia_device    *p_dev;
     dev_node_t          node;
     int                 busy;
     int                 cardnr;
@@ -141,8 +141,8 @@ typedef struct local_info_t {
 
 static int elsa_cs_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     local_info_t *local;
+    dev_link_t *link = dev_to_instance(p_dev);
 
     DEBUG(0, "elsa_cs_attach()\n");
 
@@ -150,8 +150,11 @@ static int elsa_cs_attach(struct pcmcia_device *p_dev)
     local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
     if (!local) return -ENOMEM;
     memset(local, 0, sizeof(local_info_t));
+
+    local->p_dev = p_dev;
+    link->priv = local;
+
     local->cardnr = -1;
-    link = &local->link; link->priv = local;
 
     /* Interrupt setup */
     link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
@@ -172,9 +175,6 @@ static int elsa_cs_attach(struct pcmcia_device *p_dev)
     link->conf.Attributes = CONF_ENABLE_IRQ;
     link->conf.IntType = INT_MEMORY_AND_IO;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     elsa_cs_config(link);
 
@@ -320,7 +320,7 @@ static void elsa_cs_config(dev_link_t *link)
     sprintf(dev->node.dev_name, "elsa");
     dev->node.major = dev->node.minor = 0x0;
 
-    link->dev = &dev->node;
+    link->dev_node = &dev->node;
 
     /* Finally, report what we've done */
     printk(KERN_INFO "%s: index 0x%02x: ",
diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c
index a3cd1c556352..6025722001fa 100644
--- a/drivers/isdn/hisax/sedlbauer_cs.c
+++ b/drivers/isdn/hisax/sedlbauer_cs.c
@@ -130,7 +130,7 @@ static void sedlbauer_detach(struct pcmcia_device *p_dev);
 */
    
 typedef struct local_info_t {
-    dev_link_t          link;
+        struct pcmcia_device    *p_dev;
     dev_node_t          node;
     int                 stop;
     int                 cardnr;
@@ -151,7 +151,7 @@ typedef struct local_info_t {
 static int sedlbauer_attach(struct pcmcia_device *p_dev)
 {
     local_info_t *local;
-    dev_link_t *link;
+    dev_link_t *link = dev_to_instance(p_dev);
     
     DEBUG(0, "sedlbauer_attach()\n");
 
@@ -160,8 +160,10 @@ static int sedlbauer_attach(struct pcmcia_device *p_dev)
     if (!local) return -ENOMEM;
     memset(local, 0, sizeof(local_info_t));
     local->cardnr = -1;
-    link = &local->link; link->priv = local;
-    
+
+    local->p_dev = p_dev;
+    link->priv = local;
+
     /* Interrupt setup */
     link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
     link->irq.IRQInfo1 = IRQ_LEVEL_ID;
@@ -182,13 +184,9 @@ static int sedlbauer_attach(struct pcmcia_device *p_dev)
     link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
     link->io.IOAddrLines = 3;
 
-
     link->conf.Attributes = 0;
     link->conf.IntType = INT_MEMORY_AND_IO;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     sedlbauer_config(link);
 
@@ -397,7 +395,7 @@ static void sedlbauer_config(dev_link_t *link)
     */
     sprintf(dev->node.dev_name, "sedlbauer");
     dev->node.major = dev->node.minor = 0;
-    link->dev = &dev->node;
+    link->dev_node = &dev->node;
 
     /* Finally, report what we've done */
     printk(KERN_INFO "%s: index 0x%02x:",
diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c
index 040f098d4b26..ea16ebfc028a 100644
--- a/drivers/isdn/hisax/teles_cs.c
+++ b/drivers/isdn/hisax/teles_cs.c
@@ -112,7 +112,7 @@ static void teles_detach(struct pcmcia_device *p_dev);
 */
 
 typedef struct local_info_t {
-    dev_link_t          link;
+        struct pcmcia_device    *p_dev;
     dev_node_t          node;
     int                 busy;
     int                 cardnr;
@@ -132,8 +132,8 @@ typedef struct local_info_t {
 
 static int teles_attach(struct pcmcia_device *p_dev)
 {
-    dev_link_t *link;
     local_info_t *local;
+    dev_link_t *link = dev_to_instance(p_dev);
 
     DEBUG(0, "teles_attach()\n");
 
@@ -142,7 +142,9 @@ static int teles_attach(struct pcmcia_device *p_dev)
     if (!local) return -ENOMEM;
     memset(local, 0, sizeof(local_info_t));
     local->cardnr = -1;
-    link = &local->link; link->priv = local;
+
+    local->p_dev = p_dev;
+    link->priv = local;
 
     /* Interrupt setup */
     link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
@@ -163,9 +165,6 @@ static int teles_attach(struct pcmcia_device *p_dev)
     link->conf.Attributes = CONF_ENABLE_IRQ;
     link->conf.IntType = INT_MEMORY_AND_IO;
 
-    link->handle = p_dev;
-    p_dev->instance = link;
-
     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
     teles_cs_config(link);
 
@@ -311,7 +310,7 @@ static void teles_cs_config(dev_link_t *link)
     sprintf(dev->node.dev_name, "teles");
     dev->node.major = dev->node.minor = 0x0;
 
-    link->dev = &dev->node;
+    link->dev_node = &dev->node;
 
     /* Finally, report what we've done */
     printk(KERN_INFO "%s: index 0x%02x:",