diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2026-01-07 16:15:10 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-01-26 17:44:40 -0500 |
| commit | e4ef389e761bc37904f5cf64b99af5c6c603f2ba (patch) | |
| tree | bf6287604633381bfeac46865e9a2d85ddd19d02 /kernel | |
| parent | 6a80838814eea232a83fab3ac33282cd1243da5b (diff) | |
tracing: Check the return value of tracing_update_buffers()
In the very unlikely event that tracing_update_buffers() fails in
trace_printk_init_buffers(), report the failure so that it is known.
Link: https://lore.kernel.org/all/20220917020353.3836285-1-floridsleeves@gmail.com/
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20260107161510.4dc98b15@gandalf.local.home
Suggested-by: Li Zhong <floridsleeves@gmail.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8bd4ec08fb36..870205cba31e 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3309,9 +3309,10 @@ void trace_printk_init_buffers(void) pr_warn("**********************************************************\n"); /* Expand the buffers to set size */ - tracing_update_buffers(&global_trace); - - buffers_allocated = 1; + if (tracing_update_buffers(&global_trace) < 0) + pr_err("Failed to expand tracing buffers for trace_printk() calls\n"); + else + buffers_allocated = 1; /* * trace_printk_init_buffers() can be called by modules. |