From ec9672d57670d495404f36ab8b651bfefc0ea10b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 7 Mar 2019 16:29:56 -0800
Subject: [PATCH] kcov: 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.
Link: http://lkml.kernel.org/r/20190122152151.16139-46-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
kernel/kcov.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/kcov.c b/kernel/kcov.c
index c2277dbdbfb14..5b0bb281c1a0c 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -444,10 +444,8 @@ static int __init kcov_init(void)
* there is no need to protect it against removal races. The
* use of debugfs_create_file_unsafe() is actually safe here.
*/
- if (!debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops)) {
- pr_err("failed to create kcov in debugfs\n");
- return -ENOMEM;
- }
+ debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops);
+
return 0;
}
--
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