Commit 947d66b6 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by Greg Kroah-Hartman
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n_tty: Rename tail to old_tail in n_tty_read() 



The local tail variable in n_tty_read() is used for one purpose, it
keeps the old tail. Thus, rename it appropriately to improve code
readability.

Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarJiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/22b37499-ff9a-7fc1-f6e0-58411328d122@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 42a62da0

drivers/tty/n_tty.c

+3 −3
Original line number Diff line number Diff line
@@ -2130,7 +2130,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, 
	ssize_t retval = 0;

	long timeout;

	bool packet;

	size_t tail;

	size_t old_tail;



	/*

	 * Is this a continuation of a read started earler?
@@ -2193,7 +2193,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, 
	}



	packet = tty->ctrl.packet;

	tail = ldata->read_tail;

	old_tail = ldata->read_tail;



	add_wait_queue(&tty->read_wait, &wait);

	while (nr) {
@@ -2282,7 +2282,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, 
		if (time)

			timeout = time;

	}

	if (tail != ldata->read_tail)

	if (old_tail != ldata->read_tail)

		n_tty_kick_worker(tty);

	up_read(&tty->termios_rwsem);