[PATCH] I8K: initialization code cleanup; formatting

I8K: use module_{init|exit} instead of old style #ifdef MODULE
     code, some formatting changes.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 47 insertions, 102 deletions

diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
index 1599456bdb65..584e9a4a6f18 100644
--- a/drivers/char/i8k.c
+++ b/drivers/char/i8k.c
@@ -87,14 +87,14 @@ static struct file_operations i8k_fops = {
         .ioctl          = i8k_ioctl,
 };
 
-typedef struct {
+struct smm_regs {
         unsigned int eax;
         unsigned int ebx __attribute__ ((packed));
         unsigned int ecx __attribute__ ((packed));
         unsigned int edx __attribute__ ((packed));
         unsigned int esi __attribute__ ((packed));
         unsigned int edi __attribute__ ((packed));
-} SMMRegisters;
+};
 
 static inline char *i8k_get_dmi_data(int field)
 {
@@ -104,7 +104,7 @@ static inline char *i8k_get_dmi_data(int field)
 /*
  * Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
  */
-static int i8k_smm(SMMRegisters * regs)
+static int i8k_smm(struct smm_regs *regs)
 {
         int rc;
         int eax = regs->eax;
@@ -134,9 +134,8 @@ static int i8k_smm(SMMRegisters * regs)
             :    "a"(regs)
             :    "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
 
-        if ((rc != 0) || ((regs->eax & 0xffff) == 0xffff) || (regs->eax == eax)) {
+        if (rc != 0 || (regs->eax & 0xffff) == 0xffff || regs->eax == eax)
                 return -EINVAL;
-        }
 
         return 0;
 }
@@ -147,15 +146,9 @@ static int i8k_smm(SMMRegisters * regs)
  */
 static int i8k_get_bios_version(void)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
-        int rc;
-
-        regs.eax = I8K_SMM_BIOS_VERSION;
-        if ((rc = i8k_smm(&regs)) < 0) {
-                return rc;
-        }
+        struct smm_regs regs = { .eax = I8K_SMM_BIOS_VERSION, };
 
-        return regs.eax;
+        return i8k_smm(&regs) ? : regs.eax;
 }
 
 /*
@@ -163,13 +156,11 @@ static int i8k_get_bios_version(void)
  */
 static int i8k_get_fn_status(void)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+        struct smm_regs regs = { .eax = I8K_SMM_FN_STATUS, };
         int rc;
 
-        regs.eax = I8K_SMM_FN_STATUS;
-        if ((rc = i8k_smm(&regs)) < 0) {
+        if ((rc = i8k_smm(&regs)) < 0)
                 return rc;
-        }
 
         switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
         case I8K_FN_UP:
@@ -188,20 +179,13 @@ static int i8k_get_fn_status(void)
  */
 static int i8k_get_power_status(void)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+        struct smm_regs regs = { .eax = I8K_SMM_POWER_STATUS, };
         int rc;
 
-        regs.eax = I8K_SMM_POWER_STATUS;
-        if ((rc = i8k_smm(&regs)) < 0) {
+        if ((rc = i8k_smm(&regs)) < 0)
                 return rc;
-        }
 
-        switch (regs.eax & 0xff) {
-        case I8K_POWER_AC:
-                return I8K_AC;
-        default:
-                return I8K_BATTERY;
-        }
+        return (regs.eax & 0xff) == I8K_POWER_AC ? I8K_AC : I8K_BATTERY;
 }
 
 /*
@@ -209,16 +193,10 @@ static int i8k_get_power_status(void)
  */
 static int i8k_get_fan_status(int fan)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
-        int rc;
+        struct smm_regs regs = { .eax = I8K_SMM_GET_FAN, };
 
-        regs.eax = I8K_SMM_GET_FAN;
         regs.ebx = fan & 0xff;
-        if ((rc = i8k_smm(&regs)) < 0) {
-                return rc;
-        }
-
-        return (regs.eax & 0xff);
+        return i8k_smm(&regs) ? : regs.eax & 0xff;
 }
 
 /*
@@ -226,16 +204,10 @@ static int i8k_get_fan_status(int fan)
  */
 static int i8k_get_fan_speed(int fan)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
-        int rc;
+        struct smm_regs regs = { .eax = I8K_SMM_GET_SPEED, };
 
-        regs.eax = I8K_SMM_GET_SPEED;
         regs.ebx = fan & 0xff;
-        if ((rc = i8k_smm(&regs)) < 0) {
-                return rc;
-        }
-
-        return (regs.eax & 0xffff) * I8K_FAN_MULT;
+        return i8k_smm(&regs) ? : (regs.eax & 0xffff) * I8K_FAN_MULT;
 }
 
 /*
@@ -243,18 +215,12 @@ static int i8k_get_fan_speed(int fan)
  */
 static int i8k_set_fan(int fan, int speed)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
-        int rc;
+        struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
 
         speed = (speed < 0) ? 0 : ((speed > I8K_FAN_MAX) ? I8K_FAN_MAX : speed);
-
-        regs.eax = I8K_SMM_SET_FAN;
         regs.ebx = (fan & 0xff) | (speed << 8);
-        if ((rc = i8k_smm(&regs)) < 0) {
-                return rc;
-        }
 
-        return (i8k_get_fan_status(fan));
+        return i8k_smm(&regs) ? : i8k_get_fan_status(fan);
 }
 
 /*
@@ -262,18 +228,17 @@ static int i8k_set_fan(int fan, int speed)
  */
 static int i8k_get_cpu_temp(void)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+        struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP, };
         int rc;
         int temp;
 
 #ifdef I8K_TEMPERATURE_BUG
-        static int prev = 0;
+        static int prev;
 #endif
 
-        regs.eax = I8K_SMM_GET_TEMP;
-        if ((rc = i8k_smm(&regs)) < 0) {
+        if ((rc = i8k_smm(&regs)) < 0)
                 return rc;
-        }
+
         temp = regs.eax & 0xff;
 
 #ifdef I8K_TEMPERATURE_BUG
@@ -297,19 +262,13 @@ static int i8k_get_cpu_temp(void)
 
 static int i8k_get_dell_signature(void)
 {
-        SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+        struct smm_regs regs = { .eax = I8K_SMM_GET_DELL_SIG, };
         int rc;
 
-        regs.eax = I8K_SMM_GET_DELL_SIG;
-        if ((rc = i8k_smm(&regs)) < 0) {
+        if ((rc = i8k_smm(&regs)) < 0)
                 return rc;
-        }
 
-        if ((regs.eax == 1145651527) && (regs.edx == 1145392204)) {
-                return 0;
-        } else {
-                return -1;
-        }
+        return regs.eax == 1145651527 && regs.edx == 1145392204 ? 0 : -1;
 }
 
 static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
@@ -346,29 +305,29 @@ static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
                 break;
 
         case I8K_GET_SPEED:
-                if (copy_from_user(&val, argp, sizeof(int))) {
+                if (copy_from_user(&val, argp, sizeof(int)))
                         return -EFAULT;
-                }
+
                 val = i8k_get_fan_speed(val);
                 break;
 
         case I8K_GET_FAN:
-                if (copy_from_user(&val, argp, sizeof(int))) {
+                if (copy_from_user(&val, argp, sizeof(int)))
                         return -EFAULT;
-                }
+
                 val = i8k_get_fan_status(val);
                 break;
 
         case I8K_SET_FAN:
-                if (restricted && !capable(CAP_SYS_ADMIN)) {
+                if (restricted && !capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                }
-                if (copy_from_user(&val, argp, sizeof(int))) {
+
+                if (copy_from_user(&val, argp, sizeof(int)))
                         return -EFAULT;
-                }
-                if (copy_from_user(&speed, argp + 1, sizeof(int))) {
+
+                if (copy_from_user(&speed, argp + 1, sizeof(int)))
                         return -EFAULT;
-                }
+
                 val = i8k_set_fan(val, speed);
                 break;
 
@@ -376,25 +335,24 @@ static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
                 return -EINVAL;
         }
 
-        if (val < 0) {
+        if (val < 0)
                 return val;
-        }
 
         switch (cmd) {
         case I8K_BIOS_VERSION:
-                if (copy_to_user(argp, &val, 4)) {
+                if (copy_to_user(argp, &val, 4))
                         return -EFAULT;
-                }
+
                 break;
         case I8K_MACHINE_ID:
-                if (copy_to_user(argp, buff, 16)) {
+                if (copy_to_user(argp, buff, 16))
                         return -EFAULT;
-                }
+
                 break;
         default:
-                if (copy_to_user(argp, &val, sizeof(int))) {
+                if (copy_to_user(argp, &val, sizeof(int)))
                         return -EFAULT;
-                }
+
                 break;
         }
 
@@ -415,11 +373,10 @@ static int i8k_proc_show(struct seq_file *seq, void *offset)
         left_speed      = i8k_get_fan_speed(I8K_FAN_LEFT);      /*   580 µs */
         right_speed     = i8k_get_fan_speed(I8K_FAN_RIGHT);     /*   580 µs */
         fn_key          = i8k_get_fn_status();                  /*   750 µs */
-        if (power_status) {
+        if (power_status)
                 ac_power = i8k_get_power_status();              /* 14700 µs */
-        } else {
+        else
                 ac_power = -1;
-        }
 
         /*
          * Info:
@@ -528,10 +485,7 @@ static int __init i8k_probe(void)
         return 0;
 }
 
-#ifdef MODULE
-static
-#endif
-int __init i8k_init(void)
+static int __init i8k_init(void)
 {
         struct proc_dir_entry *proc_i8k;
 
@@ -554,19 +508,10 @@ int __init i8k_init(void)
         return 0;
 }
 
-#ifdef MODULE
-int init_module(void)
+static void __exit i8k_exit(void)
 {
-        return i8k_init();
-}
-
-void cleanup_module(void)
-{
-        /* Remove the proc entry */
         remove_proc_entry("i8k", NULL);
-
-        printk(KERN_INFO "i8k: module unloaded\n");
 }
-#endif
 
-/* end of file */
+module_init(i8k_init);
+module_exit(i8k_exit);