diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-11-11 16:25:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-03 10:22:29 +0200 |
| commit | d262770b95c717353d5beb3e6cc1abce98d59f30 (patch) | |
| tree | accd5059f48be043a969d3960bd9d5dafd229dd0 /drivers/tty | |
| parent | 7738335d73d0686ec8995e0448e5d1b48cffb2a4 (diff) | |
n_tty: Rename tail to old_tail in n_tty_read()
[ Upstream commit 947d66b68f3c4e7cf8f3f3500807b9d2a0de28ce ]
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: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/22b37499-ff9a-7fc1-f6e0-58411328d122@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 4903fde8047a ("tty: fix hang on tty device with no_room set")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/n_tty.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 891036bd9f89..8f57448e1ce4 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -2100,7 +2100,7 @@ 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? @@ -2163,7 +2163,7 @@ 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) { @@ -2252,7 +2252,7 @@ more_to_be_read: 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); |