Nicholas Piggin 7f2bf7840b tty: hvc: hvc_write() fix break condition ...

Commit 550ddadcc758 ("tty: hvc: hvc_write() may sleep") broke the
termination condition in case the driver stops accepting characters.
This can result in unnecessary polling of the busy driver.

Restore it by testing the hvc_push return code.

Tested-by: Matteo Croce <mcroce@redhat.com>
Tested-by: Jason Gunthorpe <jgg@mellanox.com>
Tested-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-10 18:04:31 +02:00

..

hvc_console.c

tty: hvc: hvc_write() fix break condition

2018-09-10 18:04:31 +02:00

hvc_console.h

tty: hvc: introduce the hv_ops.flush operation for hvc drivers

2018-07-23 20:13:20 +10:00

hvc_dcc.c

tty: hvc: Remove redundant license text

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

hvc_irq.c

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

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

hvc_iucv.c

treewide: kzalloc() -> kcalloc()

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

hvc_opal.c

powerpc/powernv: provide a console flush operation for opal hvc driver

2018-08-20 20:19:54 +10:00

hvc_riscv_sbi.c

tty: New RISC-V SBI console driver

2018-03-09 10:19:28 -08:00

hvc_rtas.c

tty: hvc: Remove redundant license text

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

hvc_udbg.c

tty: hvc: Remove redundant license text

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

hvc_vio.c

tty: hvc: Remove redundant license text

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

hvc_xen.c

tty: hvc: Remove redundant license text

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

hvcs.c

treewide: kmalloc() -> kmalloc_array()

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

hvsi_lib.c

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

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

hvsi.c

tty: hvc: Remove redundant license text

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

Kconfig

TTY/Serial driver patches for 4.17-rc1

2018-04-04 18:43:49 -07:00

Makefile

TTY/Serial driver patches for 4.17-rc1

2018-04-04 18:43:49 -07:00