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path: root/drivers/net/wireless/at76c50x-usb.c
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Diffstat (limited to 'drivers/net/wireless/at76c50x-usb.c')
-rw-r--r--drivers/net/wireless/at76c50x-usb.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index 298601436ee2..39322d4121b7 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -500,10 +500,9 @@ exit:
#define HEX2STR_BUFFERS 4
#define HEX2STR_MAX_LEN 64
-#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10)
/* Convert binary data into hex string */
-static char *hex2str(void *buf, int len)
+static char *hex2str(void *buf, size_t len)
{
static atomic_t a = ATOMIC_INIT(0);
static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1];
@@ -514,18 +513,17 @@ static char *hex2str(void *buf, int len)
if (len > HEX2STR_MAX_LEN)
len = HEX2STR_MAX_LEN;
- if (len <= 0) {
- ret[0] = '\0';
- return ret;
- }
+ if (len == 0)
+ goto exit;
while (len--) {
- *obuf++ = BIN2HEX(*ibuf >> 4);
- *obuf++ = BIN2HEX(*ibuf & 0xf);
+ obuf = pack_hex_byte(obuf, *ibuf++);
*obuf++ = '-';
- ibuf++;
}
- *(--obuf) = '\0';
+ obuf--;
+
+exit:
+ *obuf = '\0';
return ret;
}