usb: atm: speedtch: use new hex_to_bin() method
Instead of using own implementation which potentialy has bugs involve
hex_to_bin() function. It requires to have hex_to_bin() implementation
introduced by starter patch in series.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
index 1e9ba4b..1335456 100644
--- a/drivers/usb/atm/speedtch.c
+++ b/drivers/usb/atm/speedtch.c
@@ -127,8 +127,6 @@
#define ENDPOINT_ISOC_DATA 0x07
#define ENDPOINT_FIRMWARE 0x05
-#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) )
-
struct speedtch_params {
unsigned int altsetting;
unsigned int BMaxDSL;
@@ -669,7 +667,8 @@
memset(atm_dev->esi, 0, sizeof(atm_dev->esi));
if (usb_string(usb_dev, usb_dev->descriptor.iSerialNumber, mac_str, sizeof(mac_str)) == 12) {
for (i = 0; i < 6; i++)
- atm_dev->esi[i] = (hex2int(mac_str[i * 2]) * 16) + (hex2int(mac_str[i * 2 + 1]));
+ atm_dev->esi[i] = (hex_to_bin(mac_str[i * 2]) << 4) +
+ hex_to_bin(mac_str[i * 2 + 1]);
}
/* Start modem synchronisation */