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mm/page_owner.c: use PTR_ERR_OR_ZERO()

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Fix ptr_ret.cocci warnings:

  mm/page_owner.c:639:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Link: http://lkml.kernel.org/r/1511824101-9597-1-git-send-email-gomonovych@gmail.com
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vasyl Gomonovych 2018-01-31 16:16:48 -08:00 committed by Linus Torvalds
parent a983b5ebee
commit 8e33771ca4
1 changed files with 1 additions and 3 deletions
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mm/page_owner.c
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@ -635,9 +635,7 @@ static int __init pageowner_init(void)
dentry = debugfs_create_file("page_owner", S_IRUSR, NULL,
NULL, &proc_page_owner_operations);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
return 0;
return PTR_ERR_OR_ZERO(dentry);
}
late_initcall(pageowner_init)