Hans de Goede f2596a9808 genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs ... [ Upstream commit 382bd4de61 ] When requesting a shared irq with IRQF_TRIGGER_NONE then the irqaction flags get filled with the trigger type from the irq_data: if (!(new->flags & IRQF_TRIGGER_MASK)) new->flags |= irqd_get_trigger_type(&desc->irq_data); On the first setup_irq() the trigger type in irq_data is NONE when the above code executes, then the irq is started up for the first time and then the actual trigger type gets established, but that's too late to fix up new->flags. When then a second user of the irq requests the irq with IRQF_TRIGGER_NONE its irqaction's triggertype gets set to the actual trigger type and the following check fails: if (!((old->flags ^ new->flags) & IRQF_TRIGGER_MASK)) Resulting in the request_irq failing with -EBUSY even though both users requested the irq with IRQF_SHARED | IRQF_TRIGGER_NONE Fix this by comparing the new irqaction's trigger type to the trigger type stored in the irq_data which correctly reflects the actual trigger type being used for the irq. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Link: http://lkml.kernel.org/r/20170415100831.17073-1-hdegoede@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-03-24 11:00:10 +01:00
..
bpf	bpf: add schedule points in percpu arrays management	2018-03-11 16:21:35 +01:00
configs	config: android: enable CONFIG_SECCOMP	2016-10-11 15:06:32 -07:00
debug	kdb: Fix handling of kallsyms_symbol_next() return value	2017-12-14 09:28:13 +01:00
events	perf/x86/intel: Account interrupts for PEBS errors	2017-12-09 22:01:52 +01:00
gcov	gcov: support GCC 7.1	2017-09-02 07:07:53 +02:00
irq	genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs	2018-03-24 11:00:10 +01:00
livepatch	livepatch/module: make TAINT_LIVEPATCH module-specific	2016-08-26 14:42:08 +02:00
locking	locking/locktorture: Fix num reader/writer corner cases	2018-03-22 09:17:58 +01:00
power	sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs	2017-10-12 11:51:25 +02:00
printk	printk: Correctly handle preemption in console_unlock()	2018-03-22 09:17:47 +01:00
rcu	rcu: Allow for page faults in NMI handlers	2017-10-18 09:35:38 +02:00
sched	sched: Stop resched_cpu() from sending IPIs to offline CPUs	2018-03-22 09:17:54 +01:00
time	time: Change posix clocks ops interfaces to use timespec64	2018-03-24 11:00:09 +01:00
trace	blktrace: fix unlocked registration of tracepoints	2018-02-25 11:05:41 +01:00
.gitignore
acct.c	kernel/acct.c: fix the acct->needcheck check in check_free_space()	2018-01-10 09:29:51 +01:00
async.c	kernel/async.c: revert "async: simplify lowest_in_progress()"	2018-02-17 13:21:18 +01:00
audit.c	audit: ensure that 'audit=1' actually enables audit for PID 1	2017-12-16 16:25:47 +01:00
audit.h	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-07-29 17:54:17 -07:00
audit_fsnotify.c
audit_tree.c	audit: cleanup prune_tree_thread	2016-04-04 09:46:47 -04:00
audit_watch.c	audit: Fix use after free in audit_remove_watch_rule()	2017-08-24 17:12:18 -07:00
auditfilter.c	audit: add fields to exclude filter by reusing user filter	2016-06-27 11:01:00 -04:00
auditsc.c	Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit	2016-10-04 14:21:41 -07:00
backtracetest.c
bounds.c
capability.c	ptrace: Capture the ptracer's creds not PT_PTRACE_CAP	2017-01-06 10:40:13 +01:00
cgroup.c	cgroup: fix error return value from cgroup_subtree_control()	2017-08-11 08:49:28 -07:00
cgroup_freezer.c
cgroup_pids.c	cgroup/pids: remove spurious suspicious RCU usage warning	2017-03-26 13:05:58 +02:00
compat.c
configs.c
context_tracking.c
cpu.c	timers: Reinitialize per cpu bases on hotplug	2018-01-02 20:35:17 +01:00
cpu_pm.c
cpuset.c	sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs	2017-10-12 11:51:25 +02:00
crash_dump.c
cred.c	cred: Reject inodes with invalid ids in set_create_file_as()	2016-06-30 18:05:09 -05:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	sched/autogroup: Do not use autogroup->tg in zombie threads	2016-11-22 12:33:43 +01:00
extable.c	kernel/extable.c: mark core_kernel_text notrace	2017-07-21 07:42:21 +02:00
fork.c	kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE	2018-01-05 15:46:32 +01:00
freezer.c	freezer, oom: check TIF_MEMDIE on the correct task	2016-07-28 16:07:41 -07:00
futex.c	futex: Prevent overflow by strengthen input validation	2018-01-23 19:57:04 +01:00
futex_compat.c
groups.c	kernel: make groups_sort calling a responsibility group_info allocators	2018-01-10 09:29:52 +01:00
hung_task.c	hung_task: allow hung_task_panic when hung_task_warnings is 0	2016-10-11 15:06:33 -07:00
irq_work.c
jump_label.c	jump_label: Invoke jump_label_test() via early_initcall()	2017-12-14 09:28:24 +01:00
kallsyms.c	kallsyms: add support for relative offsets in kallsyms address table	2016-03-15 16:55:16 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: detect double association with a single task	2018-02-25 11:05:42 +01:00
kexec.c	kexec: allow architectures to override boot mapping	2016-08-02 19:35:27 -04:00
kexec_core.c	kexec: add restriction on kexec_load() segment sizes	2016-08-02 19:35:31 -04:00
kexec_file.c	kexec: fix double-free when failing to relocate the purgatory	2016-09-01 17:52:01 -07:00
kexec_internal.h
kmod.c
kprobes.c	tracing/kprobes: Enforce kprobes teardown after testing	2017-05-25 15:44:47 +02:00
ksysfs.c	kexec: add a kexec_crash_loaded() function	2016-08-02 19:35:30 -04:00
kthread.c	cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups	2017-04-21 09:31:18 +02:00
latencytop.c
Makefile	kernel/watchdog.c: move hardlockup detector to separate file	2017-06-17 06:41:57 +02:00
membarrier.c	Fix: Disable sys_membarrier when nohz_full is enabled	2017-03-12 06:41:45 +01:00
memremap.c	mm: Fix devm_memremap_pages() collision handling	2018-02-28 10:18:34 +01:00
module-internal.h
module.c	module/retpoline: Warn about missing retpoline in module	2018-02-13 12:35:58 +01:00
module_signing.c	KEYS: Move the point of trust determination to __key_link()	2016-04-11 22:43:43 +01:00
notifier.c
nsproxy.c
padata.c	padata: free correct variable	2017-05-20 14:28:40 +02:00
panic.c	kernel/panic.c: add missing \n	2017-07-05 14:40:24 +02:00
params.c
pid.c	pids: make task_tgid_nr_ns() safe	2017-08-24 17:12:21 -07:00
pid_namespace.c	pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes	2017-05-25 15:44:38 +02:00
profile.c	profile: Convert to hotplug state machine	2016-07-15 10:41:42 +02:00
ptrace.c	ptrace: Properly initialize ptracer_cred on fork	2017-06-14 15:05:54 +02:00
range.c
reboot.c
relay.c	kernel/relay.c: revert "kernel/relay.c: fix potential memory leak"	2018-02-17 13:21:18 +01:00
resource.c	/proc/iomem: only expose physical resource addresses to privileged users	2016-04-14 12:56:09 -07:00
seccomp.c	seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()	2017-10-05 09:44:02 +02:00
signal.c	kernel/signal.c: remove the no longer needed SIGNAL_UNKILLABLE check in complete_signal()	2018-01-10 09:29:53 +01:00
smp.c	smp: Allocate smp_call_on_cpu() workqueue on stack too	2016-09-22 14:49:10 +02:00
smpboot.c	kthread/smpboot: do not park in kthread_create_on_cpu()	2016-10-11 15:06:33 -07:00
smpboot.h
softirq.c	softirq: Display IRQ_POLL for irq-poll statistics	2016-10-21 15:45:47 -06:00
stacktrace.c	stacktrace, lockdep: Fix address, newline ugliness	2017-02-14 15:25:42 -08:00
stop_machine.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-10-03 13:39:00 -07:00
sys.c	prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable	2016-05-23 17:04:14 -07:00
sys_ni.c	x86/pkeys: Fix pkeys build breakage for some non-x86 arches	2016-09-13 14:41:36 +02:00
sysctl.c	timer/sysclt: Restrict timer migration sysctl values to 0 and 1	2017-10-05 09:44:04 +02:00
sysctl_binary.c	kernel/sysctl_binary.c: use generic UUID library	2016-05-20 17:58:30 -07:00
task_work.c	task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works	2016-08-02 19:35:02 -04:00
taskstats.c	taskstats: fix the length of cgroupstats_cmd_get_policy	2016-11-03 16:55:58 -04:00
test_kprobes.c
torture.c	torture: Convert torture_shutdown() to hrtimer	2016-08-22 10:01:49 -07:00
tracepoint.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
tsacct.c
ucount.c	kernel/ucount.c: mark user_header with kmemleak_ignore()	2017-06-17 06:41:51 +02:00
uid16.c	kernel: make groups_sort calling a responsibility group_info allocators	2018-01-10 09:29:52 +01:00
up.c	smp: Add function to execute a function synchronously on a CPU	2016-09-05 13:52:39 +02:00
user-return-notifier.c
user.c
user_namespace.c	Merge branch 'nsfs-ioctls' into HEAD	2016-09-22 20:00:36 -05:00
utsname.c	Merge branch 'nsfs-ioctls' into HEAD	2016-09-22 20:00:36 -05:00
utsname_sysctl.c
watchdog.c	kernel/watchdog: prevent false hardlockup on overloaded system	2017-06-17 06:41:57 +02:00
watchdog_hld.c	kernel/watchdog: prevent false hardlockup on overloaded system	2017-06-17 06:41:57 +02:00
workqueue.c	workqueue: Allow retrieval of current task's work struct	2018-03-18 11:18:48 +01:00
workqueue_internal.h	workqueue: Fix NULL pointer dereference	2017-11-15 15:53:17 +01:00