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authorWei Yang <richard.weiyang@linux.alibaba.com>2020-07-12 09:10:36 +0800
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-09-18 22:17:14 -0400
commit22c36b18263426bdd97ef5e04c0e92224c612ee1 (patch)
tree8c42301462706949d36a4c51ebc006de12ee62b5 /kernel/trace/trace_uprobe.c
parentdc300d77b86a122d3fd099206e1adf699ed80bd7 (diff)
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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_uprobe.c')
-rw-r--r--kernel/trace/trace_uprobe.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index f4286c9bdeb4..56729c6b6614 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1625,21 +1625,20 @@ void destroy_local_trace_uprobe(struct trace_event_call *event_call)
/* Make a trace interface for controling probe points */
static __init int init_uprobe_trace(void)
{
- struct dentry *d_tracer;
int ret;
ret = dyn_event_register(&trace_uprobe_ops);
if (ret)
return ret;
- d_tracer = tracing_init_dentry();
- if (IS_ERR(d_tracer))
+ ret = tracing_init_dentry();
+ if (ret)
return 0;
- trace_create_file("uprobe_events", 0644, d_tracer,
+ trace_create_file("uprobe_events", 0644, NULL,
NULL, &uprobe_events_ops);
/* Profile interface */
- trace_create_file("uprobe_profile", 0444, d_tracer,
+ trace_create_file("uprobe_profile", 0444, NULL,
NULL, &uprobe_profile_ops);
return 0;
}