TTY: plug in deinitialize_tty_struct
authorJiri Slaby <jslaby@suse.cz>
Wed, 23 Mar 2011 09:48:36 +0000 (10:48 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 19 Apr 2011 21:43:01 +0000 (14:43 -0700)
commita9dccddb60913056bcadaeeacfe0395447fd2472
tree8f1fccdba560437d52040677347e7c2f40c18626
parent6716671d8c1c07a8072098764d1b7cbfef7412ad
TTY: plug in deinitialize_tty_struct

Used the newly introduced deinitialize_tty_struct to properly shut
down ldisc.

It is intended to fix the Julian's reported problem. He reports that
kmemleak checker warns about memory leak:
unreferenced object 0xc0e19860 (size 8):
comm cat, pid 1226, jiffies 4294919464 (age 287.476s)
hex dump (first 8 bytes):
44 de 2d c1 01 00 00 00 D.-.....
backtrace:
[<c1065a74>] create_object+0x109/0x1ad
[<c1063d2b>] kmem_cache_alloc+0x60/0x68
[<c113505c>] tty_ldisc_get+0x54/0x76
[<c11358c9>] tty_ldisc_init+0xa/0x20
[<c1130ab4>] initialize_tty_struct+0x2d/0x1ac
[<c1130c8c>] tty_init_dev+0x59/0x10d
[<c113136d>] tty_open+0x24a/0x3a2
...

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reported-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/pty.c
drivers/tty/tty_io.c