Oliver Barta 135d9ba3b2 Revert "serial: 8250: Don't service RX FIFO if interrupts are disabled" ...

commit 3f2640ed7b upstream.

This reverts commit 2e9fe53910.

Reading LSR unconditionally but processing the error flags only if
UART_IIR_RDI bit was set before in IIR may lead to a loss of transmission
error information on UARTs where the transmission error flags are cleared
by a read of LSR. Information are lost in case an error is detected right
before the read of LSR while processing e.g. an UART_IIR_THRI interrupt.

Signed-off-by: Oliver Barta <o.barta89@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: 2e9fe53910 ("serial: 8250: Don't service RX FIFO if interrupts are disabled")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-07-14 08:11:19 +02:00

..

hvc

tty: Don't force RISCV SBI console as preferred console

2019-05-22 07:37:43 +02:00

ipwireless

tty: ipwireless: fix missing checks for ioremap

2019-05-31 06:46:30 -07:00

serdev

serdev: add dev_pm_domain_attach|detach()

2018-07-15 12:23:53 +02:00

serial

Revert "serial: 8250: Don't service RX FIFO if interrupts are disabled"

2019-07-14 08:11:19 +02:00

vt

vt/fbcon: deinitialize resources in visual_init() after failed memory allocation

2019-06-09 09:17:21 +02:00

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/n_hdlc: fix __might_sleep warning

2019-01-31 08:14:36 +01:00

n_null.c

tty: Remove redundant license text

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

n_r3964.c

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11 14:34:03 -08:00

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: wipe buffer if not echoing data

2018-12-01 09:37:34 +01:00

nozomi.c

tty/nozomi: fix inconsistent indentation

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

pty.c

pty: fix O_CLOEXEC for TIOCGPTPEER

2018-07-21 09:08:47 +02:00

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

tty: replace ->proc_fops with ->proc_show

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

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: ldisc: add sysctl to prevent autoloading of ldiscs

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

tty_ldsem.c

tty/ldsem: Wake up readers after timed out down_write()

2019-01-22 21:40:28 +01:00

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: do not set TTY_IO_ERROR flag if console port

2018-12-13 09:16:22 +01:00

vcc.c

tty: vcc: Convert timers to use timer_setup()

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