Zheyu Ma 240e126c28 tty: serial: jsm: hold port lock when reporting modem line changes ... uart_handle_dcd_change() requires a port lock to be held and will emit a warning when lockdep is enabled. Held corresponding lock to fix the following warnings. [ 132.528648] WARNING: CPU: 5 PID: 11600 at drivers/tty/serial/serial_core.c:3046 uart_handle_dcd_change+0xf4/0x120 [ 132.530482] Modules linked in: [ 132.531050] CPU: 5 PID: 11600 Comm: jsm Not tainted 5.14.0-rc1-00003-g7fef2edf7cc7-dirty #31 [ 132.535268] RIP: 0010:uart_handle_dcd_change+0xf4/0x120 [ 132.557100] Call Trace: [ 132.557562] ? __free_pages+0x83/0xb0 [ 132.558213] neo_parse_modem+0x156/0x220 [ 132.558897] neo_param+0x399/0x840 [ 132.559495] jsm_tty_open+0x12f/0x2d0 [ 132.560131] uart_startup.part.18+0x153/0x340 [ 132.560888] ? lock_is_held_type+0xe9/0x140 [ 132.561660] uart_port_activate+0x7f/0xe0 [ 132.562351] ? uart_startup.part.18+0x340/0x340 [ 132.563003] tty_port_open+0x8d/0xf0 [ 132.563523] ? uart_set_options+0x1e0/0x1e0 [ 132.564125] uart_open+0x24/0x40 [ 132.564604] tty_open+0x15c/0x630 Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Link: https://lore.kernel.org/r/1626242003-3809-1-git-send-email-zheyuma97@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-07-21 12:36:48 +02:00
..
hvc	TTY / Serial patches for 5.14-rc1	2021-07-05 14:08:24 -07:00
ipwireless	ipwireless: remove unused ipw_tty::closing	2021-06-15 14:02:43 +02:00
serdev	tty: serdev: core: Fix misspelled function name __serdev_device_driver_register()	2021-05-20 17:05:34 +02:00
serial	tty: serial: jsm: hold port lock when reporting modem line changes	2021-07-21 12:36:48 +02:00
vt	Merge 5.13-rc4 into tty-next	2021-05-31 09:44:28 +02:00
amiserial.c	tty: make tty_operations::chars_in_buffer return uint	2021-05-13 18:29:11 +02:00
ehv_bytechan.c	tty: make tty_operations::write_room return uint	2021-05-13 17:03:20 +02:00
goldfish.c	tty: make tty_operations::chars_in_buffer return uint	2021-05-13 18:29:11 +02:00
Kconfig	This pull request contains the following changes for UML:	2021-07-09 10:19:13 -07:00
Makefile	tty: remove broken r3964 line discipline	2021-05-13 16:57:15 +02:00
mips_ejtag_fdc.c	tty: make tty_operations::chars_in_buffer return uint	2021-05-13 18:29:11 +02:00
moxa.c	tty: make tty_operations::chars_in_buffer return uint	2021-05-13 18:29:11 +02:00
moxa.h	tty: fix spelling mistake	2020-06-27 16:21:20 +02:00
mxser.c	mxser: introduce mxser_16550A_or_MUST helper	2021-06-18 13:10:03 +02:00
n_gsm.c	tty: n_gsm: Fix function naming and provide missing param descriptions	2021-05-20 17:06:17 +02:00
n_hdlc.c	tty: n_hdlc: Fix a little doc-rot in n_hdlc_tty_read()	2021-05-20 17:06:17 +02:00
n_null.c	tty: make tty_ldisc_ops a param in tty_unregister_ldisc	2021-05-13 16:57:16 +02:00
n_tty.c	tty: drop tty_ldisc_ops::refcount	2021-05-13 16:57:17 +02:00
nozomi.c	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'	2021-05-27 15:20:02 +02:00
pty.c	tty: pty: correct function name pty_resize()	2021-05-20 16:33:06 +02:00
synclink_gt.c	tty: make use of tty_get_{char,frame}_size	2021-06-15 14:03:27 +02:00
sysrq.c	tty/sysrq: Fix issues of code indent should use tabs	2021-04-10 10:33:00 +02:00
tty_audit.c	tty: audit: move some local functions out of tty.h	2021-04-15 10:24:58 +02:00
tty_baudrate.c	tty: tty_baudrate: Fix coding style issues of block comments	2021-05-13 18:29:12 +02:00
tty_buffer.c	tty: tty_buffer: Fix incorrectly documented function __tty_buffer_request_room()	2021-05-20 17:06:15 +02:00
tty_io.c	tty: fix kernel-doc for {start,stop}_tty	2021-05-20 16:59:14 +02:00
tty_ioctl.c	tty: make tty_get_{char,frame}_size available	2021-06-15 14:03:26 +02:00
tty_jobctrl.c	tty: tty_jobctrl: Fix 2 incorrectly documented functions	2021-05-20 17:06:15 +02:00
tty_ldisc.c	tty: tty_ldisc: fix doc warnings in tty_ldisc.c	2021-06-09 14:43:23 +02:00
tty_ldsem.c
tty_mutex.c	tty: move some internal tty lock enums and functions out of tty.h	2021-04-15 10:26:58 +02:00
tty_port.c	tty: tty_port: Fix coding style issues of block comments	2021-05-13 18:29:13 +02:00
tty.h	tty: clean include/linux/tty.h up	2021-04-15 10:32:17 +02:00
ttynull.c	tty: make tty_operations::write_room return uint	2021-05-13 17:03:20 +02:00
vcc.c	TTY / Serial patches for 5.14-rc1	2021-07-05 14:08:24 -07:00