uwb: Replace mac address parsing
Replace sscanf() with mac_pton(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -5,6 +5,7 @@
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menuconfig UWB
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tristate "Ultra Wideband devices"
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default n
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select GENERIC_NET_UTILS
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help
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UWB is a high-bandwidth, low-power, point-to-point radio
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technology using a wide spectrum (3.1-10.6GHz). It is
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@ -336,23 +336,17 @@ static ssize_t uwb_rc_mac_addr_store(struct device *dev,
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struct uwb_mac_addr addr;
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ssize_t result;
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result = sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx\n",
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&addr.data[0], &addr.data[1], &addr.data[2],
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&addr.data[3], &addr.data[4], &addr.data[5]);
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if (result != 6) {
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result = -EINVAL;
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goto out;
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}
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if (!mac_pton(buf, addr.data))
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return -EINVAL;
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if (is_multicast_ether_addr(addr.data)) {
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dev_err(&rc->uwb_dev.dev, "refusing to set multicast "
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"MAC address %s\n", buf);
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result = -EINVAL;
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goto out;
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return -EINVAL;
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}
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result = uwb_rc_mac_addr_set(rc, &addr);
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if (result == 0)
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rc->uwb_dev.mac_addr = addr;
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out:
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return result < 0 ? result : size;
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}
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DEVICE_ATTR(mac_address, S_IRUGO | S_IWUSR, uwb_rc_mac_addr_show, uwb_rc_mac_addr_store);
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