From: Maninder Singh <maninder1.s-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
To: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
"roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org"
<roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org>,
Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
"jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org"
<jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>,
Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
"eranbe-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org"
<eranbe-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Ira Weiny <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-kernel
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
PANKAJ MISHRA <pankaj.m-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Subject: Re: [PATCH 1/1] infiniband: Remove redundant NULL check before kfree
Date: Wed, 08 Jul 2015 04:23:33 +0000 (GMT) [thread overview]
Message-ID: <1037392254.437811436329408244.JavaMail.weblogic@ep2mlwas06a> (raw)
Hello,
>> + for (i = 0; i < dev->caps.num_ports; i++)
>> + kfree(dm[i]);
>> goto out;
>> }
>> }
>> --
>> 1.7.9.5
>>
>
>If you are going to change this, you might as well make it 100% correct:
>
>i—-;
>while (i >= 0)
> kfree(dm[i]);
>
>Then you don’t have to worry about whether kfree works on NULL, every item you free will be guaranteed to be non-NULL.
Thanks for suggestion :)
Sent new patch with described changes, I was thinking one more thing.
In below code :-
if (!ibdev->sriov.is_going_down)
queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
}
out:
kfree(dm);
return;
dm is freed after queue_work, is it correct to free dm when other dm[i] are allocated ? i did not get it.
Thanks
Maninder
------------
next reply other threads:[~2015-07-08 4:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 4:23 Maninder Singh [this message]
2015-07-08 22:24 ` [PATCH 1/1] infiniband: Remove redundant NULL check before kfree Doug Ledford
-- strict thread matches above, loose matches on Subject: below --
2015-06-26 7:09 Maninder Singh
2015-07-07 18:53 ` Doug Ledford
[not found] ` <1435302547-40904-1-git-send-email-maninder1.s-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2015-07-09 17:06 ` Christoph Lameter
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