isdn: remove ishexdigit() in regard to isxdigit()
Samll cleanup in drivers/isdn/gigaset/capi.c where own implementation of
isxdigit() has been changed to kernel native one.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 20ebcee..6643d65 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -171,20 +171,6 @@
}
/*
- * check for legal hex digit
- */
-static inline int ishexdigit(char c)
-{
- if (c >= '0' && c <= '9')
- return 1;
- if (c >= 'A' && c <= 'F')
- return 1;
- if (c >= 'a' && c <= 'f')
- return 1;
- return 0;
-}
-
-/*
* convert hex to binary
*/
static inline u8 hex2bin(char c)
@@ -204,7 +190,7 @@
{
int l = 0;
while (*in) {
- if (!ishexdigit(in[0]) || !ishexdigit(in[1]) || l >= maxlen)
+ if (!isxdigit(in[0]) || !isxdigit(in[1]) || l >= maxlen)
return -1;
out[++l] = (hex2bin(in[0]) << 4) + hex2bin(in[1]);
in += 2;