staging: ft1000: fix kernel info leak to userland for statistics

get_stat_data is not fully initialized before copy_to_user() call,
e.g. LedStat is not always set.

Signed-off-by: Vasiliy Kulikov <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c

···
         break;
     case IOCTL_GET_DSP_STAT_CMD:
         //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DSP_STAT called\n");
-
+	memset(&get_stat_data, 0, sizeof(get_stat_data));
         memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
         memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
         memcpy(get_stat_data.Sku, info->Sku, SKUSZ);