From 18900ca65a8553edc608b6c9d518eb31e6c09ba1 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Sat, 9 Apr 2016 17:06:48 -0700 Subject: tty: Replace TTY_IO_ERROR bit tests with tty_io_error() Abstract TTY_IO_ERROR status test treewide with tty_io_error(). NB: tty->flags uses atomic bit ops; replace non-atomic bit test with test_bit(). Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/amiserial.c | 6 +++--- drivers/tty/mxser.c | 7 +++---- drivers/tty/pty.c | 2 +- drivers/tty/serial/crisv10.c | 5 ++--- drivers/tty/serial/serial_core.c | 8 ++++---- drivers/tty/synclink.c | 4 ++-- drivers/tty/synclink_gt.c | 4 ++-- drivers/tty/synclinkmp.c | 4 ++-- drivers/tty/tty_io.c | 5 ++--- drivers/tty/tty_port.c | 2 +- 10 files changed, 22 insertions(+), 25 deletions(-) (limited to 'drivers/tty') diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index eacf4c9f3b29..183e98e84d09 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1143,7 +1143,7 @@ static int rs_tiocmget(struct tty_struct *tty) if (serial_paranoia_check(info, tty->name, "rs_ioctl")) return -ENODEV; - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; control = info->MCR; @@ -1165,7 +1165,7 @@ static int rs_tiocmset(struct tty_struct *tty, unsigned int set, if (serial_paranoia_check(info, tty->name, "rs_ioctl")) return -ENODEV; - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; local_irq_save(flags); @@ -1250,7 +1250,7 @@ static int rs_ioctl(struct tty_struct *tty, if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) && (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; } diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 2f12bb9f4336..f23c2a101688 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -1334,7 +1334,7 @@ static int mxser_tiocmget(struct tty_struct *tty) if (tty->index == MXSER_PORTS) return -ENOIOCTLCMD; - if (test_bit(TTY_IO_ERROR, &tty->flags)) + if (tty_io_error(tty)) return -EIO; control = info->MCR; @@ -1361,7 +1361,7 @@ static int mxser_tiocmset(struct tty_struct *tty, if (tty->index == MXSER_PORTS) return -ENOIOCTLCMD; - if (test_bit(TTY_IO_ERROR, &tty->flags)) + if (tty_io_error(tty)) return -EIO; spin_lock_irqsave(&info->slock, flags); @@ -1715,8 +1715,7 @@ static int mxser_ioctl(struct tty_struct *tty, return 0; } - if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && - test_bit(TTY_IO_ERROR, &tty->flags)) + if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && tty_io_error(tty)) return -EIO; switch (cmd) { diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index 0058d9fbf931..a8a292fd564f 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -44,7 +44,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp) if (tty->driver->subtype == PTY_TYPE_MASTER) WARN_ON(tty->count > 1); else { - if (test_bit(TTY_IO_ERROR, &tty->flags)) + if (tty_io_error(tty)) return; if (tty->count > 2) return; diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c index c0172bf54a9b..546990334815 100644 --- a/drivers/tty/serial/crisv10.c +++ b/drivers/tty/serial/crisv10.c @@ -3445,7 +3445,7 @@ rs_ioctl(struct tty_struct *tty, if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) && (cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; } @@ -3755,8 +3755,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp, * If non-blocking mode is set, or the port is not enabled, * then make the check up front and then exit. */ - if ((filp->f_flags & O_NONBLOCK) || - (tty->flags & (1 << TTY_IO_ERROR))) { + if ((filp->f_flags & O_NONBLOCK) || tty_io_error(tty)) { info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index a126a603b083..67b395031347 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -969,7 +969,7 @@ static int uart_tiocmget(struct tty_struct *tty) int result = -EIO; mutex_lock(&port->mutex); - if (!(tty->flags & (1 << TTY_IO_ERROR))) { + if (!tty_io_error(tty)) { result = uport->mctrl; spin_lock_irq(&uport->lock); result |= uport->ops->get_mctrl(uport); @@ -989,7 +989,7 @@ uart_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) int ret = -EIO; mutex_lock(&port->mutex); - if (!(tty->flags & (1 << TTY_IO_ERROR))) { + if (!tty_io_error(tty)) { uart_update_mctrl(uport, set, clear); ret = 0; } @@ -1238,7 +1238,7 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd, if (ret != -ENOIOCTLCMD) goto out; - if (tty->flags & (1 << TTY_IO_ERROR)) { + if (tty_io_error(tty)) { ret = -EIO; goto out; } @@ -1257,7 +1257,7 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd, mutex_lock(&port->mutex); - if (tty->flags & (1 << TTY_IO_ERROR)) { + if (tty_io_error(tty)) { ret = -EIO; goto out_up; } diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index f5476e270734..8b2277223ee7 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -2972,7 +2972,7 @@ static int mgsl_ioctl(struct tty_struct *tty, if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCMIWAIT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; } @@ -3270,7 +3270,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, printk("%s(%d):block_til_ready on %s\n", __FILE__,__LINE__, tty->driver->name ); - if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ + if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { /* nonblock mode is set or port is not enabled */ port->flags |= ASYNC_NORMAL_ACTIVE; return 0; diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index c0a2f5a1b1c2..1f7d6d9437e6 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1032,7 +1032,7 @@ static int ioctl(struct tty_struct *tty, if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCMIWAIT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; } @@ -3269,7 +3269,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, DBGINFO(("%s block_til_ready\n", tty->driver->name)); - if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ + if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { /* nonblock mode is set or port is not enabled */ port->flags |= ASYNC_NORMAL_ACTIVE; return 0; diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c index 90da0c712262..e93879944905 100644 --- a/drivers/tty/synclinkmp.c +++ b/drivers/tty/synclinkmp.c @@ -1261,7 +1261,7 @@ static int ioctl(struct tty_struct *tty, if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCMIWAIT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) + if (tty_io_error(tty)) return -EIO; } @@ -3285,7 +3285,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, printk("%s(%d):%s block_til_ready()\n", __FILE__,__LINE__, tty->driver->name ); - if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ + if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { /* nonblock mode is set or port is not enabled */ /* just verify that callout device is not active */ port->flags |= ASYNC_NORMAL_ACTIVE; diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 9b04d72e752e..320dc4da7162 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1070,7 +1070,7 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count, if (tty_paranoia_check(tty, inode, "tty_read")) return -EIO; - if (!tty || (test_bit(TTY_IO_ERROR, &tty->flags))) + if (!tty || tty_io_error(tty)) return -EIO; /* We want to wait for the line discipline to sort out in this @@ -1245,8 +1245,7 @@ static ssize_t tty_write(struct file *file, const char __user *buf, if (tty_paranoia_check(tty, file_inode(file), "tty_write")) return -EIO; - if (!tty || !tty->ops->write || - (test_bit(TTY_IO_ERROR, &tty->flags))) + if (!tty || !tty->ops->write || tty_io_error(tty)) return -EIO; /* Short term debug to catch buggy drivers */ if (tty->ops->write_room == NULL) diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index dbcca30a54b1..9127c54b803e 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -364,7 +364,7 @@ int tty_port_block_til_ready(struct tty_port *port, /* if non-blocking mode is set we can pass directly to open unless the port has just hung up or is in another error state */ - if (tty->flags & (1 << TTY_IO_ERROR)) { + if (tty_io_error(tty)) { port->flags |= ASYNC_NORMAL_ACTIVE; return 0; } -- cgit v1.2.3