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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-06 02:46:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-06 08:07:17 +0300
commitd9f7979c92f7b34469c1ca5d1f3add6681fd567c (patch)
treead8b342028e101065d752fe1fe18199766e289e3 /mm/page_owner.c
parent0ee930e6cafa048c1925893d0ca89918b2814f2c (diff)
downloadlinux-d9f7979c92f7b34469c1ca5d1f3add6681fd567c.tar.xz
mm: 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/20190122152151.16139-14-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>
Diffstat (limited to 'mm/page_owner.c')
-rw-r--r--mm/page_owner.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 28b06524939f..925b6f44a444 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -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)