From: Armin Wolf <W_Armin@xxxxxx> Using strscpy_pad() allows for fewer memory accesses since memset() will not unconditionally zero-out the whole buffer. Signed-off-by: Armin Wolf <W_Armin@xxxxxx> Acked-by: Pali Rohár <pali@xxxxxxxxxx> --- drivers/hwmon/dell-smm-hwmon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index 9773d6c0477a..b0c591bb761a 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -25,6 +25,7 @@ #include <linux/platform_device.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/string.h> #include <linux/smp.h> #include <linux/types.h> #include <linux/uaccess.h> @@ -472,8 +473,7 @@ i8k_ioctl_unlocked(struct file *fp, struct dell_smm_data *data, unsigned int cmd if (restricted && !capable(CAP_SYS_ADMIN)) return -EPERM; - memset(buff, 0, sizeof(buff)); - strscpy(buff, data->bios_machineid, sizeof(buff)); + strscpy_pad(buff, data->bios_machineid, sizeof(buff)); break; case I8K_FN_STATUS: -- 2.20.1
