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| author | Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-07-12 09:10:36 +0800 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-09-18 22:17:14 -0400 |
| commit | 22c36b18263426bdd97ef5e04c0e92224c612ee1 (patch) | |
| tree | 8c42301462706949d36a4c51ebc006de12ee62b5 /kernel/trace/trace_kprobe.c | |
| parent | dc300d77b86a122d3fd099206e1adf699ed80bd7 (diff) | |
| download | lwn-22c36b18263426bdd97ef5e04c0e92224c612ee1.tar.gz lwn-22c36b18263426bdd97ef5e04c0e92224c612ee1.zip | |
tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer
Current tracing_init_dentry() return a d_entry pointer, while is not
necessary. This function returns NULL on success or error on failure,
which means there is no valid d_entry pointer return.
Let's return 0 on success and negative value for error.
Link: https://lkml.kernel.org/r/20200712011036.70948-5-richard.weiyang@linux.alibaba.com
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index aefb6065b508..feca9b19cd74 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1901,14 +1901,14 @@ subsys_initcall(init_kprobe_trace_early); /* Make a tracefs interface for controlling probe points */ static __init int init_kprobe_trace(void) { - struct dentry *d_tracer; + int ret; struct dentry *entry; - d_tracer = tracing_init_dentry(); - if (IS_ERR(d_tracer)) + ret = tracing_init_dentry(); + if (ret) return 0; - entry = tracefs_create_file("kprobe_events", 0644, d_tracer, + entry = tracefs_create_file("kprobe_events", 0644, NULL, NULL, &kprobe_events_ops); /* Event list interface */ @@ -1916,7 +1916,7 @@ static __init int init_kprobe_trace(void) pr_warn("Could not create tracefs 'kprobe_events' entry\n"); /* Profile interface */ - entry = tracefs_create_file("kprobe_profile", 0444, d_tracer, + entry = tracefs_create_file("kprobe_profile", 0444, NULL, NULL, &kprobe_profile_ops); if (!entry) |