nixiaoming 93fc828447 tty fix oops when rmmod 8250 ... [ Upstream commit c79dde629d ] After rmmod 8250.ko tty_kref_put starts kwork (release_one_tty) to release proc interface oops when accessing driver->driver_name in proc_tty_unregister_driver Use jprobe, found driver->driver_name point to 8250.ko static static struct uart_driver serial8250_reg .driver_name= serial, Use name in proc_dir_entry instead of driver->driver_name to fix oops test on linux 4.1.12: BUG: unable to handle kernel paging request at ffffffffa01979de IP: [<ffffffff81310f40>] strchr+0x0/0x30 PGD 1a0d067 PUD 1a0e063 PMD 851c1f067 PTE 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: ... ... [last unloaded: 8250] CPU: 7 PID: 116 Comm: kworker/7:1 Tainted: G O 4.1.12 #1 Hardware name: Insyde RiverForest/Type2 - Board Product Name1, BIOS NE5KV904 12/21/2015 Workqueue: events release_one_tty task: ffff88085b684960 ti: ffff880852884000 task.ti: ffff880852884000 RIP: 0010:[<ffffffff81310f40>] [<ffffffff81310f40>] strchr+0x0/0x30 RSP: 0018:ffff880852887c90 EFLAGS: 00010282 RAX: ffffffff81a5eca0 RBX: ffffffffa01979de RCX: 0000000000000004 RDX: ffff880852887d10 RSI: 000000000000002f RDI: ffffffffa01979de RBP: ffff880852887cd8 R08: 0000000000000000 R09: ffff88085f5d94d0 R10: 0000000000000195 R11: 0000000000000000 R12: ffffffffa01979de R13: ffff880852887d00 R14: ffffffffa01979de R15: ffff88085f02e840 FS: 0000000000000000(0000) GS:ffff88085f5c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffa01979de CR3: 0000000001a0c000 CR4: 00000000001406e0 Stack: ffffffff812349b1 ffff880852887cb8 ffff880852887d10 ffff88085f5cd6c2 ffff880852800a80 ffffffffa01979de ffff880852800a84 0000000000000010 ffff88085bb28bd8 ffff880852887d38 ffffffff812354f0 ffff880852887d08 Call Trace: [<ffffffff812349b1>] ? __xlate_proc_name+0x71/0xd0 [<ffffffff812354f0>] remove_proc_entry+0x40/0x180 [<ffffffff815f6811>] ? _raw_spin_lock_irqsave+0x41/0x60 [<ffffffff813be520>] ? destruct_tty_driver+0x60/0xe0 [<ffffffff81237c68>] proc_tty_unregister_driver+0x28/0x40 [<ffffffff813be548>] destruct_tty_driver+0x88/0xe0 [<ffffffff813be5bd>] tty_driver_kref_put+0x1d/0x20 [<ffffffff813becca>] release_one_tty+0x5a/0xd0 [<ffffffff81074159>] process_one_work+0x139/0x420 [<ffffffff810745a1>] worker_thread+0x121/0x450 [<ffffffff81074480>] ? process_scheduled_works+0x40/0x40 [<ffffffff8107a16c>] kthread+0xec/0x110 [<ffffffff81080000>] ? tg_rt_schedulable+0x210/0x220 [<ffffffff8107a080>] ? kthread_freezable_should_stop+0x80/0x80 [<ffffffff815f7292>] ret_from_fork+0x42/0x70 [<ffffffff8107a080>] ? kthread_freezable_should_stop+0x80/0x80 Signed-off-by: nixiaoming <nixiaoming@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-12-20 10:10:34 +01:00
..
9p	fs/9p: Compare qid.path in v9fs_test_inode	2017-11-30 08:40:49 +00:00
adfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
affs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
afs	afs: Connect up the CB.ProbeUuid	2017-12-14 09:53:15 +01:00
autofs4	autofs: fix careless error in recent commit	2017-12-20 10:10:17 +01:00
befs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
bfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
btrfs	btrfs: tests: Fix a memory leak in error handling path in 'run_test()'	2017-12-20 10:10:30 +01:00
cachefiles	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ceph	ceph: drop negative child dentries before try pruning inode's alias	2017-12-20 10:10:19 +01:00
cifs	cifs: fix NULL deref in SMB2_read	2017-12-20 10:10:17 +01:00
coda	coda: fix 'kernel memory exposure attempt' in fsync	2017-11-24 08:37:05 +01:00
configfs
cramfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
crypto	fscrypt: lock mutex before checking for bounce page pool	2017-11-30 08:40:44 +00:00
debugfs
devpts	pty: Repair TIOCGPTPEER	2017-08-24 13:23:03 -07:00
dlm	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ecryptfs	eCryptfs: use after free in ecryptfs_release_messaging()	2017-11-30 08:40:45 +00:00
efivarfs
efs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
exofs	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
exportfs
ext2	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ext4	ext4: fix crash when a directory's i_size is too small	2017-12-20 10:10:22 +01:00
f2fs	f2fs: fix to clear FI_NO_PREALLOC	2017-12-14 09:53:14 +01:00
fat	fs/fat/inode.c: fix sb_rdonly() change	2017-12-05 11:26:29 +01:00
freevxfs
fscache	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fuse	fuse: fix READDIRPLUS skipping an entry	2017-10-25 16:34:27 +02:00
gfs2	GFS2: Take inode off order_write list when setting jdata flag	2017-12-20 10:10:29 +01:00
hfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hfsplus	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hostfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hpfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hugetlbfs	fs/hugetlbfs/inode.c: fix hwpoison reserve accounting	2017-11-03 07:39:19 -07:00
isofs	isofs: fix timestamps beyond 2027	2017-11-30 08:40:45 +00:00
jbd2
jffs2	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
jfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
kernfs	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
lockd	lockd: lost rollback of set_grace_period() in lockd_down_net()	2017-12-05 11:26:30 +01:00
minix	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ncpfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nfs	nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests	2017-12-20 10:10:20 +01:00
nfs_common
nfsd	kernel: make groups_sort calling a responsibility group_info allocators	2017-12-20 10:10:18 +01:00
nilfs2	nilfs2: fix race condition that causes file system corruption	2017-11-30 08:40:44 +00:00
nls	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
notify	fsnotify: fix pinning group in fsnotify_prepare_user_wait()	2017-11-30 08:40:47 +00:00
ntfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ocfs2	ocfs2: should wait dio before inode lock in ocfs2_setattr()	2017-11-24 08:37:04 +01:00
omfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
openpromfs
orangefs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
overlayfs	ovl: update ctx->pos on impure dir iteration	2017-12-20 10:10:18 +01:00
proc	tty fix oops when rmmod 8250	2017-12-20 10:10:34 +01:00
pstore	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
qnx4	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
qnx6	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
quota	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ramfs	mm: make pagevec_lookup() update index	2017-09-06 17:27:26 -07:00
reiserfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
romfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
squashfs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sysfs
sysv	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tracefs
ubifs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
udf	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ufs	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xfs	xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real	2017-12-20 10:10:32 +01:00
aio.c	Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 19:29:55 -07:00
anon_inodes.c
attr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
bad_inode.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
binfmt_aout.c	fs: fix kernel_read prototype	2017-09-04 19:05:15 -04:00
binfmt_elf.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:13:32 -07:00
binfmt_elf_fdpic.c	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 18:13:32 -07:00
binfmt_em86.c
binfmt_flat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
binfmt_misc.c	fs/binfmt_misc.c: node could be NULL when evicting inode	2017-10-13 16:18:33 -07:00
binfmt_script.c	exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array	2017-10-03 17:54:25 -07:00
block_dev.c	fs/mpage.c: fix mpage_writepage() for pages with buffers	2017-10-13 16:18:33 -07:00
buffer.c	fs: guard_bio_eod() needs to consider partitions	2017-11-30 08:40:45 +00:00
char_dev.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
coredump.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dax.c	dax: fix PMD faults on zero-length files	2017-11-30 08:40:53 +00:00
dcache.c
dcookies.c
direct-io.c	Changes since last update:	2017-10-18 14:51:50 -04:00
drop_caches.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
eventfd.c
eventpoll.c	fs/epoll: use faster rb_first_cached()	2017-09-08 18:26:49 -07:00
exec.c	Revert "exec: avoid RLIMIT_STACK races with prlimit()"	2017-12-20 10:10:22 +01:00
fcntl.c	fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall	2017-12-17 15:07:59 +01:00
fhandle.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
file.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
file_table.c	fput: Don't reinvent the wheel but use existing llist API	2017-08-28 00:50:23 -04:00
filesystems.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fs-writeback.c
fs_pin.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fs_struct.c
inode.c	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2017-09-13 09:11:44 -07:00
internal.h	Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2017-09-13 09:11:44 -07:00
ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
iomap.c	fs: invalidate page cache after end_io() in dio completion	2017-10-16 12:11:56 -07:00
Kconfig
Kconfig.binfmt
libfs.c
locks.c
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mbcache.c
mount.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mpage.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
namei.c	autofs: revert "autofs: fix AT_NO_AUTOMOUNT not being honored"	2017-12-05 11:26:29 +01:00
namespace.c	vfs: fix mounting a filesystem with i_version	2017-10-17 02:22:07 -04:00
no-block.c
nsfs.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
open.c	ovl: don't allow writing ioctl on lower layer	2017-09-05 12:53:12 +02:00
pipe.c	pipe: match pipe_max_size data type with procfs	2017-12-14 09:53:08 +01:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
read_write.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
readdir.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
select.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
seq_file.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
signalfd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
splice.c	fs: move kernel_write to fs/read_write.c	2017-09-04 19:05:15 -04:00
stack.c
stat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
statfs.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
super.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sync.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
timerfd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
userfaultfd.c	userfaultfd: non-cooperative: fix fork use after free	2017-10-03 17:54:25 -07:00
utimes.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr.c	lsm: fix smack_inode_removexattr and xattr_getsecurity memleak	2017-10-04 18:03:15 +11:00