Valentin Caron 82a99bc85c serial: stm32: prevent TDR register overwrite when sending x_char ... [ Upstream commit d3d079bde0 ] When sending x_char in stm32_usart_transmit_chars(), driver can overwrite the value of TDR register by the value of x_char. If this happens, the previous value that was present in TDR register will not be sent through uart. This code checks if the previous value in TDR register is sent before writing the x_char value into register. Fixes: 48a6092fb4 ("serial: stm32-usart: Add STM32 USART Driver") Cc: stable <stable@vger.kernel.org> Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> Link: https://lore.kernel.org/r/20220111164441.6178-2-valentin.caron@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-03-08 19:12:32 +01:00
..
hvc	xen/console: harden hvc_xen against event channel storms	2021-12-22 09:32:52 +01:00
ipwireless	tty: drop put_tty_driver	2021-07-27 12:17:21 +02:00
serdev	TTY / Serial patches for 5.15-rc1	2021-09-01 09:51:16 -07:00
serial	serial: stm32: prevent TDR register overwrite when sending x_char	2022-03-08 19:12:32 +01:00
vt	vt_ioctl: add array_index_nospec to VT_ACTIVATE	2022-02-16 12:56:33 +01:00
amiserial.c	tty: drop put_tty_driver	2021-07-27 12:17:21 +02:00
ehv_bytechan.c	tty: drop put_tty_driver	2021-07-27 12:17:21 +02:00
goldfish.c	tty: drop put_tty_driver	2021-07-27 12:17:21 +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: drop put_tty_driver	2021-07-27 12:17:21 +02:00
moxa.c	tty: moxa: use semi-colons instead of commas	2021-08-26 14:48:07 +02:00
moxa.h	tty: fix spelling mistake	2020-06-27 16:21:20 +02:00
mxser.c	mxser: keep only !tty test in ISR	2022-01-27 11:04:30 +01:00
n_gsm.c	tty: n_gsm: fix deadlock in gsmtty_open()	2022-03-02 11:48:09 +01:00
n_hdlc.c	tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous	2021-12-22 09:32:45 +01:00
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: n_tty: do not look ahead for EOL character past the end of the buffer	2022-02-23 12:03:15 +01:00
nozomi.c	tty: drop put_tty_driver	2021-07-27 12:17:21 +02:00
pty.c	tty: pty: correct function name pty_resize()	2021-05-20 16:33:06 +02:00
synclink_gt.c	tty: synclink_gt: rename a conflicting function name	2021-09-14 10:51:37 +02:00
sysrq.c	tty: replace in_irq() with in_hardirq()	2021-08-16 19:01:52 +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 the softlockup issue in flush_to_ldisc	2021-11-25 09:48:28 +01:00
tty_io.c	tty: Fix data race between tiocsti() and flush_to_ldisc()	2021-08-26 14:51:38 +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: unexport tty_ldisc_release	2021-09-14 11:18:47 +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: drop put_tty_driver	2021-07-27 12:17:21 +02:00
vcc.c	tty: drop put_tty_driver	2021-07-27 12:17:21 +02:00