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tracing: Remove duplicate warnings when calling trace_create_file()

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Since the same warning message is already printed in the
trace_create_file() function, there is no need to print it again.

Link: https://lkml.kernel.org/r/20220109162232.361747-1-ytcoode@gmail.com

Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Yuntao Wang 2022-01-10 00:22:32 +08:00 committed by Steven Rostedt
parent dfea08a211
commit 6e1b4bd191
1 changed files with 3 additions and 9 deletions
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12
kernel/trace/trace_events.c
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@ -3461,10 +3461,8 @@ create_event_toplevel_files(struct dentry *parent, struct trace_array *tr)
entry = trace_create_file("enable", TRACE_MODE_WRITE, d_events,
tr, &ftrace_tr_enable_fops);
if (!entry) {
pr_warn("Could not create tracefs 'enable' entry\n");
if (!entry)
return -ENOMEM;
}
/* There are not as crucial, just warn if they are not created */
@ -3480,17 +3478,13 @@ create_event_toplevel_files(struct dentry *parent, struct trace_array *tr)
pr_warn("Could not create tracefs 'set_event_notrace_pid' entry\n");
/* ring buffer internal formats */
entry = trace_create_file("header_page", TRACE_MODE_READ, d_events,
trace_create_file("header_page", TRACE_MODE_READ, d_events,
ring_buffer_print_page_header,
&ftrace_show_header_fops);
if (!entry)
pr_warn("Could not create tracefs 'header_page' entry\n");
entry = trace_create_file("header_event", TRACE_MODE_READ, d_events,
trace_create_file("header_event", TRACE_MODE_READ, d_events,
ring_buffer_print_entry_header,
&ftrace_show_header_fops);
if (!entry)
pr_warn("Could not create tracefs 'header_event' entry\n");
tr->event_dir = d_events;