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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-12-19 20:16:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-09 16:15:20 +0100 |
| commit | e142dc1ecc555c77826ee2706dd86f329d35597e (patch) | |
| tree | 7501930d25f0dfff07cd760fe744139887f32069 /drivers/uwb | |
| parent | 102402a73bbeb8b2e0785a3653f37ce480a18614 (diff) | |
| download | linux-stable-e142dc1ecc555c77826ee2706dd86f329d35597e.tar.gz linux-stable-e142dc1ecc555c77826ee2706dd86f329d35597e.tar.bz2 linux-stable-e142dc1ecc555c77826ee2706dd86f329d35597e.zip | |
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>
Diffstat (limited to 'drivers/uwb')
| -rw-r--r-- | drivers/uwb/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/uwb/address.c | 14 |
2 files changed, 5 insertions, 10 deletions
diff --git a/drivers/uwb/Kconfig b/drivers/uwb/Kconfig index c204094e1bb4..afac2588dab4 100644 --- a/drivers/uwb/Kconfig +++ b/drivers/uwb/Kconfig @@ -5,6 +5,7 @@ menuconfig UWB tristate "Ultra Wideband devices" default n + select GENERIC_NET_UTILS help UWB is a high-bandwidth, low-power, point-to-point radio technology using a wide spectrum (3.1-10.6GHz). It is diff --git a/drivers/uwb/address.c b/drivers/uwb/address.c index 8739c4f4d015..2833be9cbc2a 100644 --- a/drivers/uwb/address.c +++ b/drivers/uwb/address.c @@ -336,23 +336,17 @@ static ssize_t uwb_rc_mac_addr_store(struct device *dev, struct uwb_mac_addr addr; ssize_t result; - result = sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx\n", - &addr.data[0], &addr.data[1], &addr.data[2], - &addr.data[3], &addr.data[4], &addr.data[5]); - if (result != 6) { - result = -EINVAL; - goto out; - } + if (!mac_pton(buf, addr.data)) + return -EINVAL; if (is_multicast_ether_addr(addr.data)) { dev_err(&rc->uwb_dev.dev, "refusing to set multicast " "MAC address %s\n", buf); - result = -EINVAL; - goto out; + return -EINVAL; } result = uwb_rc_mac_addr_set(rc, &addr); if (result == 0) rc->uwb_dev.mac_addr = addr; -out: + return result < 0 ? result : size; } DEVICE_ATTR(mac_address, S_IRUGO | S_IWUSR, uwb_rc_mac_addr_show, uwb_rc_mac_addr_store); |