diff options
Diffstat (limited to 'drivers/iio/magnetometer/ak8974.c')
| -rw-r--r-- | drivers/iio/magnetometer/ak8974.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c index 76091da20a0c..b1c209faf1b1 100644 --- a/drivers/iio/magnetometer/ak8974.c +++ b/drivers/iio/magnetometer/ak8974.c @@ -20,6 +20,7 @@ #include <linux/mutex.h> #include <linux/delay.h> #include <linux/bitops.h> +#include <linux/random.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> @@ -470,6 +471,7 @@ static int ak8974_detect(struct ak8974 *ak8974) ret = ak8974_get_u16_val(ak8974, AMI305_SN, &sn); if (ret) return ret; + add_device_randomness(&sn, sizeof(sn)); dev_info(&ak8974->i2c->dev, "detected %s, FW ver %02x, S/N: %04x\n", name, fw, sn); |