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d8a64313c1
twx-linux/kernel/trace
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Lukas Bulwahn d8a64313c1 tracing: React to error return from traceprobe_parse_event_name() 
The function traceprobe_parse_event_name() may set the first two function
arguments to a non-null value and still return -EINVAL to indicate an
unsuccessful completion of the function. Hence, it is not sufficient to
just check the result of the two function arguments for being not null,
but the return value also needs to be checked.

Commit 95c104c378dc ("tracing: Auto generate event name when creating a
group of events") changed the error-return-value checking of the second
traceprobe_parse_event_name() invocation in __trace_eprobe_create() and
removed checking the return value to jump to the error handling case.

Reinstate using the return value in the error-return-value checking.

Link: https://lkml.kernel.org/r/20220811071734.20700-1-lukas.bulwahn@gmail.com

Fixes: 95c104c378dc ("tracing: Auto generate event name when creating a group of events")
Acked-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-08-21 15:56:07 -04:00
..
rv rv: Unlock on error path in rv_unregister_reactor() 2022-08-04 22:49:17 -04:00
blktrace.c block: serialize all debugfs operations using q->debugfs_mutex 2022-06-17 07:31:05 -06:00
bpf_trace.c bpf: Force cookies array to follow symbols sorting 2022-06-16 19:42:21 -07:00
bpf_trace.h
error_report-traces.c
fgraph.c arm64 fixes for 5.19-rc1: 2022-06-03 14:05:34 -07:00
fprobe.c fprobe: Resolve symbols with ftrace_lookup_symbols 2022-05-10 14:42:06 -07:00
ftrace_internal.h
ftrace.c ftrace: Keep address offset in ftrace_lookup_symbols 2022-06-16 19:42:21 -07:00
Kconfig rv: Add Runtime Verification (RV) interface 2022-07-30 14:01:28 -04:00
kprobe_event_gen_test.c
Makefile rv: Add Runtime Verification (RV) interface 2022-07-30 14:01:28 -04:00
pid_list.c tracing: Cleanup double word in comment 2022-04-26 17:58:50 -04:00
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c rethook: Reject getting a rethook if RCU is not watching 2022-06-17 21:53:35 +02:00
ring_buffer_benchmark.c
ring_buffer.c ring-buffer: Have 32 bit time stamps use all 64 bits 2022-04-27 17:19:30 -04:00
rpm-traces.c
synth_event_gen_test.c
trace_benchmark.c
trace_benchmark.h
trace_boot.c tracing: Initialize integer variable to prevent garbage return value 2022-05-26 21:13:00 -04:00
trace_branch.c
trace_clock.c
trace_dynevent.c tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
trace_dynevent.h
trace_entries.h
trace_eprobe.c tracing: React to error return from traceprobe_parse_event_name() 2022-08-21 15:56:07 -04:00
trace_event_perf.c tracing: Show size of requested perf buffer 2021-10-27 12:25:09 -04:00
trace_events_filter_test.h
trace_events_filter.c tracing: Fix comments of create_filter() 2022-05-26 21:13:01 -04:00
trace_events_hist.c tracing/histograms: Simplify create_hist_fields() 2022-07-12 17:35:11 -04:00
trace_events_inject.c tracing: Support __rel_loc relative dynamic data location attribute 2021-12-06 15:37:21 -05:00
trace_events_synth.c tracing: Fix strncpy warning in trace_events_synth.c 2022-03-11 11:49:24 -05:00
trace_events_trigger.c tracing: Fix comments for event_trigger_separate_filter() 2022-05-26 22:03:52 -04:00
trace_events_user.c tracing/user_events: Fix syntax errors in comments 2022-07-12 17:35:11 -04:00
trace_events.c tracing updates for 5.19: 2022-05-29 10:31:36 -07:00
trace_export.c
trace_functions_graph.c
trace_functions.c ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
trace_hwlat.c trace/hwlat: make use of the helper function kthread_run_on_cpu() 2022-01-15 16:30:24 +02:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c tracing updates for 5.19: 2022-05-29 10:31:36 -07:00
trace_output.c tracing: Remove usage of list iterator after the loop body 2022-04-27 17:19:30 -04:00
trace_output.h
trace_preemptirq.c lockdep: Fix -Wunused-parameter for _THIS_IP_ 2022-04-05 10:24:34 +02:00
trace_printk.c
trace_probe_tmpl.h
trace_probe.c tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
trace_probe.h tracing/eprobe: Show syntax error logs in error_log file 2022-08-02 15:22:55 -04:00
trace_recursion_record.c tracing: Use trace_create_file() to simplify creation of tracefs entries 2022-05-26 21:12:52 -04:00
trace_sched_switch.c sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
trace_sched_wakeup.c sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Reset the function filter after completing trampoline/graph selftest 2022-05-25 16:57:37 -04:00
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h
trace_syscalls.c tracing: Make tp_printk work on syscall tracepoints 2022-04-26 17:58:52 -04:00
trace_uprobe.c tracing: Auto generate event name when creating a group of events 2022-07-24 19:11:17 -04:00
trace.c tracing: Use free_trace_buffer() in allocate_trace_buffers() 2022-08-02 15:13:19 -04:00
trace.h rv: Add Runtime Verification (RV) interface 2022-07-30 14:01:28 -04:00
tracing_map.c tracing: Fix tracing_map_sort_entries() kernel-doc comment 2022-04-26 17:58:51 -04:00
tracing_map.h