twx-linux/kernel
Masami Hiramatsu (Google) 6022c065c9 tracing/trigger: Fix to return error if failed to alloc snapshot
commit 0958b33ef5a04ed91f61cef4760ac412080c4e08 upstream.

Fix register_snapshot_trigger() to return error code if it failed to
allocate a snapshot instead of 0 (success). Unless that, it will register
snapshot trigger without an error.

Link: https://lore.kernel.org/linux-trace-kernel/170622977792.270660.2789298642759362200.stgit@devnote2

Fixes: 0bbe7f719985 ("tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation")
Cc: stable@vger.kernel.org
Cc: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-23 09:24:54 +01:00
..
bpf bpf: Set uattr->batch.count as zero before batched update or deletion 2024-02-05 20:14:21 +00:00
cgroup
configs
debug
dma
entry
events perf: Fix the nr_addr_filters fix 2024-02-05 20:14:33 +00:00
futex
gcov
irq genirq: Initialize resend_node hlist for all interrupt descriptors 2024-01-31 16:19:13 -08:00
kcsan
livepatch
locking
module
power PM: hibernate: Enforce ordering during image compression/decompression 2024-01-31 16:18:49 -08:00
printk
rcu rcu: Defer RCU kthreads wakeup when CPU is dying 2024-01-31 16:19:03 -08:00
sched
time hrtimer: Report offline hrtimer enqueue 2024-02-16 19:10:55 +01:00
trace tracing/trigger: Fix to return error if failed to alloc snapshot 2024-02-23 09:24:54 +01:00
.gitignore
acct.c
async.c async: Introduce async_schedule_dev_nocall() 2024-01-31 16:18:49 -08:00
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c audit: Send netlink ACK before setting connection in auditd_set 2024-02-05 20:14:14 +00:00
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cfi.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c
freezer.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms_internal.h
kallsyms_selftest.c
kallsyms_selftest.h
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.kexec
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c kexec: do syscore_shutdown() in kernel_kexec 2024-01-31 16:18:56 -08:00
kexec_elf.c
kexec_file.c
kexec_internal.h
kexec.c
kheaders.c
kprobes.c
ksyms_common.c
ksysfs.c
kthread.c
latencytop.c
Makefile
module_signature.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c
pid_sysctl.h
pid.c
profile.c
ptrace.c
range.c
reboot.c
regset.c
relay.c
resource_kunit.c
resource.c
rseq.c
scftorture.c
scs.c
seccomp.c
signal.c
smp.c
smpboot.c
smpboot.h
softirq.c
stackleak.c
stacktrace.c
static_call_inline.c
static_call.c
stop_machine.c
sys_ni.c
sys.c
sysctl-test.c
sysctl.c
task_work.c
taskstats.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c
utsname.c
vhost_task.c
watch_queue.c
watchdog_buddy.c
watchdog_perf.c
watchdog.c
workqueue_internal.h
workqueue.c