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authorYuntao Wang2022-01-10 00:22:32 +0800
committerSteven Rostedt2022-01-13 17:02:42 -0500
commit6e1b4bd1911d814077d77e2ac6529d74ee68c0f6 (patch)
treebc7123efa9a3878e6aa9c94a5a46f2d64dc28d2b /kernel/trace/trace_events.c
parentdfea08a2116fe327f79d8f4d4b2cf6e0c88be11f (diff)
tracing: Remove duplicate warnings when calling trace_create_file()
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>
Diffstat (limited to 'kernel/trace/trace_events.c')
-rw-r--r--kernel/trace/trace_events.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 92be9cb1d7d4..3147614c1812 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -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;