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UPSTREAM: kcov: no need to check return value of debugfs_create functions

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(Upstream commit ec9672d57670d495404f36ab8b651bfefc0ea10b.)

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>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: I8ed5dc6aeba3dda8b91ceea4fed5cd9ef058461f
Bug: 147413187
This commit is contained in:
Greg Kroah-Hartman
2019-03-07 16:29:56 -08:00
committed by Alistair Delva
parent 21e3a71314
commit 8e39dd1479
1 changed files with 2 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/kcov.c
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@@ -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;
}