staging: rtl8192su: don't use own isxdigit() method

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 24 deletions

diff --git a/drivers/staging/rtl8192su/r8192S_Efuse.c b/drivers/staging/rtl8192su/r8192S_Efuse.c
index 97d1c38b6fe..bbefd0f3034 100644
--- a/drivers/staging/rtl8192su/r8192S_Efuse.c
+++ b/drivers/staging/rtl8192su/r8192S_Efuse.c
@@ -29,6 +29,7 @@
 #include "r8192S_Efuse.h"
 
 #include <linux/types.h>
+#include <linux/ctype.h>
 
 #define         _POWERON_DELAY_
 #define         _PRE_EXECUTE_READ_CMD_
@@ -1793,26 +1794,6 @@ EFUSE_ProgramMap(struct net_device* dev, char* pFileName,u8	TableType)
 
 #endif
 
-//
-//      Description:
-//              Return TRUE if chTmp is represent for hex digit and
-//              FALSE otherwise.
-//
-//
-bool IsHexDigit(        char chTmp)
-{
-        if( (chTmp >= '0' && chTmp <= '9') ||
-                (chTmp >= 'a' && chTmp <= 'f') ||
-                (chTmp >= 'A' && chTmp <= 'F') )
-        {
-                return TRUE;
-        }
-        else
-        {
-                return FALSE;
-        }
-}
-
 /*-----------------------------------------------------------------------------
  * Function:    efuse_ParsingMap
  *
@@ -1855,10 +1836,8 @@ efuse_ParsingMap(char* szStr,u32* pu4bVal,u32* pu4bMove)
 
         // Check if szScan is now pointer to a character for hex digit,
         // if not, it means this is not a valid hex number.
-        if(!IsHexDigit(*szScan))
-        {
+        if (!isxdigit(*szScan))
                 return FALSE;
-        }
 
         // Parse each digit.
         do
@@ -1867,7 +1846,7 @@ efuse_ParsingMap(char* szStr,u32* pu4bVal,u32* pu4bMove)
 
                 szScan++;
                 (*pu4bMove)++;
-        } while(IsHexDigit(*szScan));
+        } while (isxdigit(*szScan));
 
         return TRUE;