kernel_optimize_test/arch/xtensa
Jiri Slaby dd3307a8b3 xtensa: ISS: don't panic in rs_init
[ Upstream commit 23411c720052ad860b3e579ee4873511e367130a ]

While alloc_tty_driver failure in rs_init would mean we have much bigger
problem, there is no reason to panic when tty_register_driver fails
there. It can fail for various reasons.

So handle the failure gracefully. Actually handle them both while at it.
This will make at least the console functional as it was enabled earlier
by console_initcall in iss_console_init. Instead of shooting down the
whole system.

We move tty_port_init() after alloc_tty_driver(), so that we don't need
to destroy the port in case the latter function fails.

Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210723074317.32690-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-18 13:40:22 +02:00
..
boot Kbuild updates for v5.9 2020-08-09 14:10:26 -07:00
configs xtensa: reorganize vectors placement 2020-02-04 21:57:02 -08:00
include local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
kernel sched/core: Initialize the idle task with preemption disabled 2021-07-14 16:55:50 +02:00
lib xtensa: propagate the calling conventions change down into csum_partial_copy_generic() 2020-08-20 15:45:21 -04:00
mm xtensa: fix uaccess-related livelock in do_page_fault 2021-04-07 15:00:09 +02:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
platforms xtensa: ISS: don't panic in rs_init 2021-09-18 13:40:22 +02:00
variants xtensa: add test_kc705_be variant 2018-08-20 12:34:45 -07:00
Kconfig xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG 2021-09-08 08:49:00 +02:00
Kconfig.debug xtensa: make stack dump size configurable 2019-11-26 11:33:39 -08:00
Makefile xtensa: add XIP kernel support 2019-11-26 11:33:38 -08:00