Fix build error when compiling with verbose logging (espressif#5747)

urish · web-flow · commit 88789cd81748 · 2021-10-11T13:00:25.000+03:00
When compiling with verbose logging, the build would error with a message saying `len` is not defined in `tud_vendor_rx_cb()`. This change fixes the error.
diff --git a/libraries/USB/src/USBVendor.cpp b/libraries/USB/src/USBVendor.cpp
@@ -40,8 +40,8 @@ uint16_t tusb_vendor_load_descriptor(uint8_t * dst, uint8_t * itf)
 }
 
 void tud_vendor_rx_cb(uint8_t itf){
-    log_v("%u", len);
     size_t len = tud_vendor_n_available(itf);
+    log_v("%u", len);
     if(len){
         uint8_t buffer[len];
         len = tud_vendor_n_read(itf, buffer, len);

Original file line number	Diff line number	Diff line change
`@@ -40,8 +40,8 @@ uint16_t tusb_vendor_load_descriptor(uint8_t * dst, uint8_t * itf)`
`40`	`40`	`}`
`41`	`41`
`42`	`42`	`void tud_vendor_rx_cb(uint8_t itf){`
`43`		`- log_v("%u", len);`
`44`	`43`	`size_t len = tud_vendor_n_available(itf);`
	`44`	`+ log_v("%u", len);`
`45`	`45`	`if(len){`
`46`	`46`	`uint8_t buffer[len];`
`47`	`47`	`len = tud_vendor_n_read(itf, buffer, len);`