Fix garbled print_xyz output (#18810)

4 years ago · 9ece3cfdaf
1 changed files with 1 additions and 1 deletions
--- a/Marlin/src/core/serial.cpp
+++ b/Marlin/src/core/serial.cpp
@ -68,7 +68,7 @@ void print_bin(uint16_t val) {
 extern const char SP_X_STR[], SP_Y_STR[], SP_Z_STR[];

 void print_xyz(const float &x, const float &y, const float &z, PGM_P const prefix/*=nullptr*/, PGM_P const suffix/*=nullptr*/) {
-  serialprintPGM(prefix);
+  if (prefix) serialprintPGM(prefix);
  SERIAL_ECHOPAIR_P(SP_X_STR, x, SP_Y_STR, y, SP_Z_STR, z);
  if (suffix) serialprintPGM(suffix); else SERIAL_EOL();
 }