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Revert "tty: fix port buffer locking"

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This reverts commit 925bb1ce47f429f69aad35876df7ecd8c53deb7e.

It causes lots of warnings and problems so for now, let's just revert
it.

Reported-by: <valdis.kletnieks@vt.edu>
Reported-by: Russell King <linux@armlinux.org.uk>
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2017-06-04 10:23:25 +02:00
parent 5ed02dbb49
commit fc098af16b
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/tty_port.c
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@ -34,9 +34,7 @@ static int tty_port_default_receive_buf(struct tty_port *port,
if (!disc)
return 0;
mutex_lock(&tty->atomic_write_lock);
ret = tty_ldisc_receive_buf(disc, p, (char *)f, count);
mutex_unlock(&tty->atomic_write_lock);
tty_ldisc_deref(disc);