kernel-fxtec-pro1x/drivers/tty
Oliver Barta 135d9ba3b2 Revert "serial: 8250: Don't service RX FIFO if interrupts are disabled"
commit 3f2640ed7be838c3f05c0d2b0f7c7508e7431e48 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
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
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c
n_hdlc.c
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c
pty.c
rocket.c tty: rocket: fix incorrect forward declaration of 'rp_init()' 2019-07-10 09:53:44 +02:00
rocket.h
rocket_int.h
synclink.c
synclink_gt.c
synclinkmp.c
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
vcc.c