Mix device-specific data into randomness pool. Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx> --- drivers/iio/magnetometer/ak8974.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c index 76091da20a0c..ab204f8560e3 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> @@ -466,10 +467,12 @@ static int ak8974_detect(struct ak8974 *ak8974) ret = regmap_read(ak8974->map, AMI305_VER, &fw); if (ret) return ret; + add_device_randomness(&fw, sizeof(fw)); fw &= 0x7f; /* only bits 0 thru 6 valid */ 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); -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
