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-rw-r--r--drivers/isdn/gigaset/capi.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 20ebcee9b0c..6643d6533cc 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -171,20 +171,6 @@ static inline void ignore_cstruct_param(struct cardstate *cs, _cstruct param,
}
/*
- * 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 @@ static int encode_ie(char *in, u8 *out, int maxlen)
{
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;