From: Hugo Villeneuve Date: Fri, 10 Apr 2026 15:20:10 +0000 (-0400) Subject: serial: apbuart: remove check for zero baud rate from uart_get_baud_rate() X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=888b245964ad3617866d6d4b5bb8a154a410ef32;p=thirdparty%2Fkernel%2Fstable.git serial: apbuart: remove check for zero baud rate from uart_get_baud_rate() The minimum baud rate supported by this driver is 0, so even for the B0 case, uart_get_baud_rate() will return 9600, not zero. This check predates commit 16ae2a877bf4 ("serial: Fix crash if the minimum rate of the device is > 9600 baud") and is no longer necessary so remove it. Signed-off-by: Hugo Villeneuve Link: https://patch.msgid.link/20260410152022.2146488-3-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c index 3e46341cfff8..afb04d727203 100644 --- a/drivers/tty/serial/apbuart.c +++ b/drivers/tty/serial/apbuart.c @@ -210,8 +210,6 @@ static void apbuart_set_termios(struct uart_port *port, /* Ask the core to calculate the divisor for us. */ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16); - if (baud == 0) - panic("invalid baudrate %i\n", port->uartclk / 16); /* uart_get_divisor calc a *16 uart freq, apbuart is *8 */ quot = (uart_get_divisor(port, baud)) * 2;