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serial: sc16is7xx: change confusing comment about Tx FIFO

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The comment wording can be confusing, as txlen will return the number of
bytes available in the FIFO, which can be less than the maximum theoretical
Tx FIFO size.

Change the comment so that it is unambiguous.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20231122175859.3874753-1-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hugo Villeneuve 2023-11-22 12:58:59 -05:00 committed by Greg Kroah-Hartman
parent 45a3a8ef81
commit fffa35a25b
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/sc16is7xx.c
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@ -664,7 +664,7 @@ static void sc16is7xx_handle_tx(struct uart_port *port)
/* Get length of data pending in circular buffer */
to_send = uart_circ_chars_pending(xmit);
if (likely(to_send)) {
/* Limit to size of TX FIFO */
/* Limit to space available in TX FIFO */
txlen = sc16is7xx_port_read(port, SC16IS7XX_TXLVL_REG);
if (txlen > SC16IS7XX_FIFO_SIZE) {
dev_err_ratelimited(port->dev,