Fugang Duan e67c139c48 tty: serial: imx: keep console clocks always on ... For below code, there has chance to cause deadlock in SMP system: Thread 1: clk_enable_lock(); pr_info("debug message"); clk_enable_unlock(); Thread 2: imx_uart_console_write() clk_enable() clk_enable_lock(); Thread 1: Acuired clk enable_lock -> printk -> console_trylock_spinning Thread 2: console_unlock() -> imx_uart_console_write -> clk_disable -> Acquite clk enable_lock So the patch is to keep console port clocks always on like other console drivers. Fixes: 1cf93e0d54 ("serial: imx: remove the uart_console() check") Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Link: https://lore.kernel.org/r/20201111025136.29818-1-fugang.duan@nxp.com Cc: stable <stable@vger.kernel.org> [fix up build warning - gregkh] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-11-12 09:39:53 +01:00
..
hvc	tty: hvc: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n	2020-09-27 14:17:43 +02:00
ipwireless	tty: ipwireless: fix error handling	2020-09-04 18:08:16 +02:00
serdev	serdev: Fix detection of UART devices on Apple machines.	2020-03-06 14:10:44 +01:00
serial	tty: serial: imx: keep console clocks always on	2020-11-12 09:39:53 +01:00
vt	TTY/Serial fixes for 5.10-rc3	2020-11-08 11:28:08 -08:00
amiserial.c	Remove every trace of SERIAL_MAGIC	2019-11-13 19:01:14 +08:00
cyclades.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
ehv_bytechan.c	tty: evh_bytechan: Fix out of bounds accesses	2020-03-17 23:40:31 +11:00
goldfish.c
isicom.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile
mips_ejtag_fdc.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
moxa.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
moxa.h	tty: fix spelling mistake	2020-06-27 16:21:20 +02:00
mxser.c	tty: mxser: make mxser_change_speed() return void	2020-05-15 14:47:05 +02:00
mxser.h
n_gsm.c	Linux 5.9-rc3	2020-08-31 07:19:25 +02:00
n_hdlc.c	Linux 5.9-rc3	2020-08-31 07:19:25 +02:00
n_null.c
n_r3964.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h	tty: n_tracesink: Use the correct style for SPDX License Identifier	2020-03-18 13:01:31 +01:00
n_tty.c	tty: ldiscs, fix kernel-doc	2020-08-18 13:51:18 +02:00
nozomi.c	tty: nozomi: Use scnprintf() for avoiding potential buffer overflow	2020-03-18 12:59:29 +01:00
pty.c	pty: do tty_flip_buffer_push without port->lock in pty_write	2020-09-04 18:10:30 +02:00
rocket_int.h
rocket.c	Merge 5.7-rc3 into tty-next	2020-04-27 09:33:21 +02:00
rocket.h
synclink_gt.c	tty: synclink_gt: switch from 'pci_' to 'dma_' API	2020-09-04 18:07:22 +02:00
synclink.c	tty: synclink, fix kernel-doc	2020-08-18 13:51:18 +02:00
synclinkmp.c	tty: synclink, fix kernel-doc	2020-08-18 13:51:18 +02:00
sysrq.c	tty/sysrq: Extend the sysrq_key_table to cover capital letters	2020-10-02 14:56:06 +02:00
tty_audit.c
tty_baudrate.c	tty: fix kernel-doc	2020-08-18 13:51:18 +02:00
tty_buffer.c	tty: fix kernel-doc	2020-08-18 13:51:18 +02:00
tty_io.c	tty: fix crash in release_tty if tty->port is not set	2020-11-06 17:24:49 +01:00
tty_ioctl.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
tty_jobctrl.c	tty: fix kernel-doc	2020-08-18 13:51:18 +02:00
tty_ldisc.c	tty: fix kernel-doc	2020-08-18 13:51:18 +02:00
tty_ldsem.c	locking/lockdep: Remove unused @nested argument from lock_release()	2019-10-09 12:46:10 +02:00
tty_mutex.c
tty_port.c	serdev: ttyport: restore client ops on deregistration	2020-02-10 12:26:44 -08:00
ttynull.c
vcc.c	sparc64: vcc: Fix error return code in vcc_probe()	2020-04-28 14:38:54 +02:00