trace: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1c80521..a95c5cd 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -8604,10 +8604,6 @@ struct dentry *tracing_init_dentry(void)
         */
        tr->dir = debugfs_create_automount("tracing", NULL,
                                           trace_automount, NULL);
-       if (!tr->dir) {
-               pr_warn_once("Could not create debugfs directory 'tracing'\n");
-               return ERR_PTR(-ENOMEM);
-       }
 
        return NULL;
 }