[U-Boot] lcd_putc bug?

In the lcd_putc() of common/lcd.c, line 189 handles tab '\t'. And the following lines: console_col |= 8; console_col &= ~7; seems to have problems. If console_col is 9, it will become 8 after the above two lines, which means instead of tab of 8 spaces, it goes back 1. Is this intentional or a bug?

I think it should be console_col += 8; instead of console_col |= 8;

Derek