serial: max310x: move variables to while() scope

txlen, to_send and tail variables are only used within the while() loop.

Move them to that scope to keep them closer to their usage and improve
readability.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260417-max310x-2-v1-9-b424e105ecac@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index b4449b68cfeee07d1d6d3206cf58f72fac00044e..748306d1a9329694e90ec4f096dd00e39d457fda 100644 (file)
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -761,8 +761,6 @@ static void max310x_handle_rx(struct uart_port *port, unsigned int rxlen)
 static void max310x_handle_tx(struct uart_port *port)
 {
        struct tty_port *tport = &port->state->port;
-       unsigned int txlen, to_send;
-       unsigned char *tail;
 
        if (unlikely(port->x_char)) {
                max310x_port_write(port, MAX310X_THR_REG, port->x_char);
@@ -779,6 +777,9 @@ static void max310x_handle_tx(struct uart_port *port)
         * We could do that in one SPI transaction, but meh.
         */
        while (!kfifo_is_empty(&tport->xmit_fifo)) {
+               unsigned int txlen, to_send;
+               unsigned char *tail;
+
                /* Limit to space available in TX FIFO */
                txlen = max310x_port_read(port, MAX310X_TXFIFOLVL_REG);
                txlen = port->fifosize - txlen;