timekeeping/debug: 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.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190122152151.16139-43-gregkh@linuxfoundation.org

diff --git a/kernel/time/timekeeping_debug.c b/kernel/time/timekeeping_debug.c
index 86489950d6902505fa071422b50c6d899029d233..b73e8850e58d9c5b291559f475e67c7ed47c2db3 100644 (file)
--- a/kernel/time/timekeeping_debug.c
+++ b/kernel/time/timekeeping_debug.c
@@ -37,15 +37,8 @@ DEFINE_SHOW_ATTRIBUTE(tk_debug_sleep_time);
 
 static int __init tk_debug_sleep_time_init(void)
 {
-       struct dentry *d;
-
-       d = debugfs_create_file("sleep_time", 0444, NULL, NULL,
-               &tk_debug_sleep_time_fops);
-       if (!d) {
-               pr_err("Failed to create sleep_time debug file\n");
-               return -ENOMEM;
-       }
-
+       debugfs_create_file("sleep_time", 0444, NULL, NULL,
+                           &tk_debug_sleep_time_fops);
        return 0;
 }
 late_initcall(tk_debug_sleep_time_init);