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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-05 15:46:09 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:17 -0800 |
| commit | d9f7979c92f7b34469c1ca5d1f3add6681fd567c (patch) | |
| tree | ad8b342028e101065d752fe1fe18199766e289e3 /mm/page_owner.c | |
| parent | mm/memory.c: prevent mapping typed pages to userspace (diff) | |
| download | linux-dev-d9f7979c92f7b34469c1ca5d1f3add6681fd567c.tar.xz linux-dev-d9f7979c92f7b34469c1ca5d1f3add6681fd567c.zip | |
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.c | 8 |
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) |