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commit b68dc9af6db53de231d5ac71f9b6ba2ff3057a68
Author: Peter Wu <peter@lekensteyn.nl>
Date: Sun Jun 14 22:59:19 2020 +0200
ltunify: fix harmless compiler warning
bInterfaceNumber is expected to return the `%02x` format according to
the current kernel sources. Even if that is not true, a user can always
manually specify the hidraw device if the wrong device is detected.
diff --git a/ltunify.c b/ltunify.c
index 1e685b4..9625776 100644
--- a/ltunify.c
+++ b/ltunify.c
@@ -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) {
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