linux_dsm_epyc7002/drivers/tty
Zeng Zhaoming 106b5fa700 tty: Fix memory leak in virtual console when enable unicode translation
Virtual console unicode translation map leaks with following
message when enable kmemleak:

unreferenced object 0xeb5ec450 (size 192):
  comm "setfont", pid 665, jiffies 4294899028 (age 3696.220s)
  hex dump (first 32 bytes):
    e0 5b 9d eb 00 00 00 00 00 00 00 00 80 b9 ea eb  .[..............
    b0 5a 9d eb 00 00 00 00 00 00 00 00 00 00 00 00  .Z..............
  backtrace:
    [<c1533f8c>] kmemleak_alloc+0x3c/0xa0
    [<c114acc2>] kmem_cache_alloc_trace+0xe2/0x250
    [<c13498e8>] con_clear_unimap+0x78/0xd0
    [<c1345552>] vt_ioctl+0x1562/0x1d00
    [<c133aa00>] tty_ioctl+0x230/0x7c0
    [<c1171519>] do_vfs_ioctl+0x79/0x2d0
    [<c11717df>] sys_ioctl+0x6f/0x80
    [<c156601f>] sysenter_do_call+0x12/0x38
    [<ffffffff>] 0xffffffff
unreferenced object 0xeb9d5be0 (size 128):
  comm "setfont", pid 660, jiffies 4294899030 (age 3696.212s)
  hex dump (first 32 bytes):
    60 c2 a6 eb 50 c8 a6 eb c0 54 9d eb 80 59 9d eb  `...P....T...Y..
    90 53 9d eb 60 52 9d eb 60 92 9b eb 00 00 00 00  .S..`R..`.......
  backtrace:
    [<c1533f8c>] kmemleak_alloc+0x3c/0xa0
    [<c114acc2>] kmem_cache_alloc_trace+0xe2/0x250
    [<c134938c>] con_insert_unipair+0x7c/0x150
    [<c1349f8c>] con_set_unimap+0x15c/0x1f0
    [<c13456fb>] vt_ioctl+0x170b/0x1d00
    [<c133aa00>] tty_ioctl+0x230/0x7c0
    [<c1171519>] do_vfs_ioctl+0x79/0x2d0
    [<c11717df>] sys_ioctl+0x6f/0x80
    [<c156601f>] sysenter_do_call+0x12/0x38
    [<ffffffff>] 0xffffffff

The leak caused by con_set_default_unimap() not correct free the old map.

Signed-off-by: Zeng Zhaoming <zengzm.kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04 16:18:55 -08:00
..
hvc tty: hvc_dcc: Fix duplicate character inputs 2011-11-15 12:02:13 -08:00
ipwireless
serial serial: use DIV_ROUND_CLOSEST instead of open coding it 2012-01-04 16:18:54 -08:00
vt tty: Fix memory leak in virtual console when enable unicode translation 2012-01-04 16:18:55 -08:00
amiserial.c TTY: irq: Remove IRQF_DISABLED 2011-09-22 16:08:57 -07:00
bfin_jtag_comm.c
cyclades.c TTY: irq: Remove IRQF_DISABLED 2011-09-22 16:08:57 -07:00
ehv_bytechan.c drivers/tty: don't use the byte channel handle as a parameter in ehv_bytechan.c 2011-09-26 16:38:43 -07:00
isicom.c TTY: irq: Remove IRQF_DISABLED 2011-09-22 16:08:57 -07:00
Kconfig Merge branch 'for-linus' of git://github.com/richardweinberger/linux 2011-11-02 09:45:39 -07:00
Makefile
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c n_gsm: Fix timings 2011-11-08 10:10:20 -08:00
n_hdlc.c tty: n_hdlc not atomic use tty->flags. 2011-11-30 21:30:49 +09:00
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c drivers/tty: Remove unneeded spaces 2011-12-09 19:11:35 -08:00
nozomi.c
pty.c TTY: pty, cleanup the pty counting 2011-11-17 11:42:09 -08:00
rocket_int.h
rocket.c
rocket.h
synclink_gt.c
synclink.c
synclinkmp.c TTY: snyclinkmp: forever loop in tx_load_dma_buffer() 2011-09-29 13:23:33 -07:00
sysrq.c
tty_audit.c
tty_buffer.c
tty_io.c TTY: open/release, cleanup printks 2011-11-15 15:52:48 -08:00
tty_ioctl.c tty: Support compat_ioctl get/set termios_locked 2011-10-18 14:17:11 -07:00
tty_ldisc.c Merge 3.2-rc3 into tty-next to handle merge conflict in tty_ldisc.c 2011-11-26 20:07:25 -08:00
tty_mutex.c
tty_port.c