diff options
author | Takashi Iwai <tiwai@suse.de> | 2013-12-04 12:40:59 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2013-12-04 12:40:59 +0100 |
commit | b0e6989c965dda2f2b65a2abb04f5337b497f4a2 (patch) | |
tree | eb70ca5f8fc50688f879d1c851fa3f09a6c68850 /drivers/tty/n_tty.c | |
parent | 20ce902978a70ab51ad9ed645f636805f3ff2b0d (diff) | |
parent | 29e248829dc7d44248c69bbd5d40eca152a50cab (diff) |
Merge tag 'asoc-v3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.13
A smattering of fixes here, some core ones for the rate combination
issues for things other than simple bitmasks, for readback of byte
controls and for updating the power of value muxes plus a bunch of
driver fixes of varying severity.
The warning fix in the i.MX FIQ driver is fixing a warning introduced
by a previous fix.
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r-- | drivers/tty/n_tty.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 7cdd1eb9406..0f74945af62 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -768,7 +768,7 @@ static size_t __process_echoes(struct tty_struct *tty) * data at the tail to prevent a subsequent overrun */ while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) { if (echo_buf(ldata, tail) == ECHO_OP_START) { - if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB) + if (echo_buf(ldata, tail + 1) == ECHO_OP_ERASE_TAB) tail += 3; else tail += 2; @@ -1998,7 +1998,10 @@ static int canon_copy_from_read_buf(struct tty_struct *tty, found = 1; size = N_TTY_BUF_SIZE - tail; - n = (found + eol + size) & (N_TTY_BUF_SIZE - 1); + n = eol - tail; + if (n > 4096) + n += 4096; + n += found; c = n; if (found && read_buf(ldata, eol) == __DISABLED_CHAR) { @@ -2243,18 +2246,19 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file, if (time) timeout = time; } - mutex_unlock(&ldata->atomic_read_lock); - remove_wait_queue(&tty->read_wait, &wait); + n_tty_set_room(tty); + up_read(&tty->termios_rwsem); + remove_wait_queue(&tty->read_wait, &wait); if (!waitqueue_active(&tty->read_wait)) ldata->minimum_to_wake = minimum; + mutex_unlock(&ldata->atomic_read_lock); + __set_current_state(TASK_RUNNING); if (b - buf) retval = b - buf; - n_tty_set_room(tty); - up_read(&tty->termios_rwsem); return retval; } |