diff options
Diffstat (limited to 'ltunify.c')
-rw-r--r-- | ltunify.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -1214,7 +1214,10 @@ int open_hidraw(void) { if (pid == PID_NANO_RECEIVER_2) { int iface = -1; if ((fp = fopen_format("/sys/class/hidraw/%s/device/../bInterfaceNumber", dev_name))) { - fscanf(fp, "%02x", &iface); + int m = fscanf(fp, "%02x", &iface); + if (m != 1) { + iface = -1; + } fclose(fp); } if (iface == 0) { |