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Message-ID: <56994E1E.2070000@oracle.com>
Date: Fri, 15 Jan 2016 14:53:02 -0500
From: Boris Ostrovsky <boris.ostrovsky@...cle.com>
To: Andrew Cooper <andrew.cooper3@...rix.com>, konrad.wilk@...cle.com,
david.vrabel@...rix.com
Cc: xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [Xen-devel] [PATCH] xen/gntdev: Don't allocate struct
gntdev_copy_batch on stack
On 01/15/2016 02:50 PM, Andrew Cooper wrote:
> On 15/01/16 19:43, Boris Ostrovsky wrote:
>> @@ -933,18 +937,20 @@ static long gntdev_ioctl_grant_copy(struct gntdev_priv *priv, void __user *u)
>> goto out;
>> }
>>
>> - ret = gntdev_grant_copy_seg(&batch, &seg, ©.segments[i].status);
>> + ret = gntdev_grant_copy_seg(batch, &seg,
>> + ©.segments[i].status);
>> if (ret < 0)
>> goto out;
>>
>> cond_resched();
>> }
>> - if (batch.nr_ops)
>> - ret = gntdev_copy(&batch);
>> + if (batch->nr_ops)
>> + ret = gntdev_copy(batch);
> You presumably want a kfree() here?
Ah, missed it. Thanks.
>
>> return ret;
>>
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