Fabrice Gasnier e44463f267 serial: stm32: fix clearing interrupt error flags ...

[ Upstream commit 1250ed7114 ]

The interrupt clear flag register is a "write 1 to clear" register.
So, only writing ones allows to clear flags:
- Replace buggy stm32_clr_bits() by a simple write to clear error flags
- Replace useless read/modify/write stm32_set_bits() routine by a
  simple write to clear TC (transfer complete) flag.

Fixes: 4f01d833fd ("serial: stm32: fix rx error handling")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1574323849-1909-1-git-send-email-fabrice.gasnier@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-27 14:51:22 +01:00

..

hvc

powerpc/pseries/hvconsole: Fix stack overread via udbg

2020-01-09 10:19:08 +01:00

ipwireless

tty: ipwireless: Fix potential NULL pointer dereference

2020-01-27 14:50:16 +01:00

serdev

serdev: Don't claim unsupported ACPI serial devices

2020-01-14 20:07:05 +01:00

serial

serial: stm32: fix clearing interrupt error flags

2020-01-27 14:51:22 +01:00

vt

vcs: prevent write access to vcsu devices

2019-12-13 08:52:51 +01:00

amiserial.c

tty: replace ->proc_fops with ->proc_show

2018-05-16 07:24:30 +02:00

cyclades.c

tty: replace ->proc_fops with ->proc_show

2018-05-16 07:24:30 +02:00

ehv_bytechan.c

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

goldfish.c

headers: separate linux/mod_devicetable.h from linux/platform_device.h

2018-07-07 17:52:26 +02:00

isicom.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

Kconfig

tty: ldisc: add sysctl to prevent autoloading of ldiscs

2019-04-17 08:38:47 +02:00

Makefile

tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers

2018-03-26 15:57:24 +02:00

mips_ejtag_fdc.c

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

moxa.c

tty: moxa: Add support for CMSPAR

2017-11-28 15:32:33 +01:00

moxa.h

tty: moxa: Add support for CMSPAR

2017-11-28 15:32:33 +01:00

mxser.c

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

mxser.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

n_gsm.c

Merge 4.17-rc3 into tty-next

2018-04-30 05:14:55 -07:00

n_hdlc.c

tty: Don't block on IO when ldisc change is pending

2019-12-13 08:52:28 +01:00

n_null.c

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

n_r3964.c

tty: Don't block on IO when ldisc change is pending

2019-12-13 08:52:28 +01:00

n_tracerouter.c

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

n_tracesink.c

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

n_tracesink.h

tty: Remove redundant license text

2017-11-08 13:08:12 +01:00

n_tty.c

tty: Don't block on IO when ldisc change is pending

2019-12-13 08:52:28 +01:00

nozomi.c

tty/nozomi: fix inconsistent indentation

2018-04-25 14:54:26 +02:00

pty.c

pty: fix compat ioctls

2019-12-01 09:16:16 +01:00

rocket_int.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rocket.c

tty: rocket: fix incorrect forward declaration of 'rp_init()'

2019-07-10 09:53:44 +02:00

rocket.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

synclink_gt.c

synclink_gt(): fix compat_ioctl()

2019-12-01 09:16:16 +01:00

synclink.c

tty: replace ->proc_fops with ->proc_show

2018-05-16 07:24:30 +02:00

synclinkmp.c

tty: replace ->proc_fops with ->proc_show

2018-05-16 07:24:30 +02:00

sysrq.c

signal: Pass pid type into do_send_sig_info

2018-07-21 12:57:35 -05:00

tty_audit.c

audit: eliminate audit_enabled magic number comparison

2018-06-19 10:43:55 -04:00

tty_baudrate.c

termios, tty/tty_baudrate.c: fix buffer overrun

2018-11-21 09:19:20 +01:00

tty_buffer.c

tty: increase the default flip buffer limit to 2*640K

2019-04-05 22:33:13 +02:00

tty_io.c

tty: ldisc: add sysctl to prevent autoloading of ldiscs

2019-04-17 08:38:47 +02:00

tty_ioctl.c

tty: add missing const to termios hw-change helper

2018-05-22 10:08:05 +02:00

tty_jobctrl.c

tty: add SPDX identifiers to all remaining files in drivers/tty/

2017-11-08 13:08:12 +01:00

tty_ldisc.c

tty: Don't block on IO when ldisc change is pending

2019-12-13 08:52:28 +01:00

tty_ldsem.c

tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop

2019-08-16 10:12:50 +02:00

tty_mutex.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tty_port.c

tty: always relink the port

2020-01-14 20:07:06 +01:00

vcc.c

tty: vcc: Convert timers to use timer_setup()

2017-11-04 12:01:54 +01:00