Don't handle backspace, if string is empty

4 years ago · d540bf6762
parent 647cc4fe6a
commit d540bf6762
1 changed files with 3 additions and 0 deletions
--- a/23-fixes/drivers/keyboard.c
+++ b/23-fixes/drivers/keyboard.c
@ -32,6 +32,9 @@ static void keyboard_callback(registers_t *regs) {
    char str[2];
    if (scancode > SC_MAX) return;
    if (scancode == BACKSPACE) {
+        if (strcmp(key_buffer, "") == 0) {
+          return;
+        }
        backspace(key_buffer);
        kprint_backspace();
    } else if (scancode == ENTER) {