1 files changed, 27 insertions, 23 deletions

diff --git a/arch/x86/kernel/bootflag.c b/arch/x86/kernel/bootflag.c
index 0b9860530a6b..30f25a75fe28 100644
--- a/arch/x86/kernel/bootflag.c
+++ b/arch/x86/kernel/bootflag.c
@@ -1,8 +1,6 @@
 /*
  *      Implement 'Simple Boot Flag Specification 2.0'
  */
-
-
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -14,40 +12,38 @@
 
 #include <linux/mc146818rtc.h>
 
-
 #define SBF_RESERVED (0x78)
 #define SBF_PNPOS    (1<<0)
 #define SBF_BOOTING  (1<<1)
 #define SBF_DIAG     (1<<2)
 #define SBF_PARITY   (1<<7)
 
-
 int sbf_port __initdata = -1;   /* set via acpi_boot_init() */
 
-
 static int __init parity(u8 v)
 {
         int x = 0;
         int i;
-        
-        for(i=0;i<8;i++)
-        {
-                x^=(v&1);
-                v>>=1;
+
+        for (i = 0; i < 8; i++) {
+                x ^= (v & 1);
+                v >>= 1;
         }
+
         return x;
 }
 
 static void __init sbf_write(u8 v)
 {
         unsigned long flags;
-        if(sbf_port != -1)
-        {
+
+        if (sbf_port != -1) {
                 v &= ~SBF_PARITY;
-                if(!parity(v))
-                        v|=SBF_PARITY;
+                if (!parity(v))
+                        v |= SBF_PARITY;
 
-                printk(KERN_INFO "Simple Boot Flag at 0x%x set to 0x%x\n", sbf_port, v);
+                printk(KERN_INFO "Simple Boot Flag at 0x%x set to 0x%x\n",
+                        sbf_port, v);
 
                 spin_lock_irqsave(&rtc_lock, flags);
                 CMOS_WRITE(v, sbf_port);
@@ -57,33 +53,41 @@ static void __init sbf_write(u8 v)
 
 static u8 __init sbf_read(void)
 {
-        u8 v;
         unsigned long flags;
-        if(sbf_port == -1)
+        u8 v;
+
+        if (sbf_port == -1)
                 return 0;
+
         spin_lock_irqsave(&rtc_lock, flags);
         v = CMOS_READ(sbf_port);
         spin_unlock_irqrestore(&rtc_lock, flags);
+
         return v;
 }
 
 static int __init sbf_value_valid(u8 v)
 {
-        if(v&SBF_RESERVED)              /* Reserved bits */
+        if (v & SBF_RESERVED)           /* Reserved bits */
                 return 0;
-        if(!parity(v))
+        if (!parity(v))
                 return 0;
+
         return 1;
 }
 
 static int __init sbf_init(void)
 {
         u8 v;
-        if(sbf_port == -1)
+
+        if (sbf_port == -1)
                 return 0;
+
         v = sbf_read();
-        if(!sbf_value_valid(v))
-                printk(KERN_WARNING "Simple Boot Flag value 0x%x read from CMOS RAM was invalid\n",v);
+        if (!sbf_value_valid(v)) {
+                printk(KERN_WARNING "Simple Boot Flag value 0x%x read from "
+                        "CMOS RAM was invalid\n", v);
+        }
 
         v &= ~SBF_RESERVED;
         v &= ~SBF_BOOTING;
@@ -92,7 +96,7 @@ static int __init sbf_init(void)
         v |= SBF_PNPOS;
 #endif
         sbf_write(v);
+
         return 0;
 }
-
 module_init(sbf_init);