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Code Issues Releases Wiki Activity

mxser: remove pointless ioaddr checks

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struct mxser_port::ioaddr can never be NULL once set in ->probe. Hence
the checks for it are pointless. Remove them.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210618061516.662-55-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2021-06-18 08:15:00 +02:00 committed by Greg Kroah-Hartman
parent ad1c92ff6e
commit 987a4cfee5
1 changed files with 1 additions and 10 deletions
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11
drivers/tty/mxser.c
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@ -446,9 +446,6 @@ static int mxser_set_baud(struct tty_struct *tty, speed_t newspd)
unsigned char cval;
u64 timeout;
if (!info->ioaddr)
return -1;
if (newspd > info->board->max_baud)
return -1;
@ -519,8 +516,6 @@ static void mxser_change_speed(struct tty_struct *tty)
unsigned char status;
cflag = tty->termios.c_cflag;
if (!info->ioaddr)
return;
mxser_set_baud(tty, tty_get_baud_rate(tty));
@ -724,7 +719,7 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
spin_lock_irqsave(&info->slock, flags);
if (!info->ioaddr || !info->type) {
if (!info->type) {
set_bit(TTY_IO_ERROR, &tty->flags);
free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
@ -1097,10 +1092,6 @@ static int mxser_set_serial_info(struct tty_struct *tty,
return -EIO;
mutex_lock(&port->mutex);
if (!info->ioaddr) {
mutex_unlock(&port->mutex);
return -ENODEV;
}
if (ss->irq != info->board->irq ||
ss->port != info->ioaddr) {