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mm: no need to check return value of debugfs_create functions

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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/20190122152151.16139-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Laura Abbott <labbott@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Kroah-Hartman
2019-03-05 15:46:09 -08:00
committed by Linus Torvalds
parent 0ee930e6ca
commit d9f7979c92
9 changed files with 23 additions and 63 deletions
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8
mm/page_owner.c
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@@ -625,16 +625,14 @@ static const struct file_operations proc_page_owner_operations = {
static int __init pageowner_init(void)
{
struct dentry *dentry;
if (!static_branch_unlikely(&page_owner_inited)) {
pr_info("page_owner is disabled\n");
return 0;
}
dentry = debugfs_create_file("page_owner", 0400, NULL,
NULL, &proc_page_owner_operations);
debugfs_create_file("page_owner", 0400, NULL, NULL,
&proc_page_owner_operations);
return PTR_ERR_OR_ZERO(dentry);
return 0;
}
late_initcall(pageowner_init)