linux-kernel - Re: [Xen-devel] [PATCH 2/4] drivers/xen/xenbus/xenbus_client.c: Correct the comments for xenbus_grant

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Date:	Tue, 16 Sep 2014 06:53:52 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	David Vrabel <david.vrabel@...rix.com>
CC:	konrad.wilk@...cle.com, boris.ostrovsky@...cle.com,
	stefano.stabellini@...citrix.com, mukesh.rathor@...cle.com,
	xen-devel@...ts.xenproject.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH 2/4] drivers/xen/xenbus/xenbus_client.c: Correct
 the comments for xenbus_grant_ring()

On 09/15/2014 11:27 PM, David Vrabel wrote:
> On 14/09/14 11:50, Chen Gang wrote:
>> Both zero and positive number can indicate success, so the original
>> comments need be improved.
>>
>> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
>> ---
>>  drivers/xen/xenbus/xenbus_client.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
>> index 277e74d..e2cf681 100644
>> --- a/drivers/xen/xenbus/xenbus_client.c
>> +++ b/drivers/xen/xenbus/xenbus_client.c
>> @@ -361,8 +361,8 @@ static void xenbus_switch_fatal(struct xenbus_device *dev, int depth, int err,
>>   * @ring_mfn: mfn of ring to grant
>>  
>>   * Grant access to the given @ring_mfn to the peer of the given device.  Return
>> - * 0 on success, or -errno on error.  On error, the device will switch to
>> - * XenbusStateClosing, and the error will be saved in the store.
>> + * 0 or positive number on success, or -errno on error.  On error, the device
>> + * will switch to XenbusStateClosing, and the error will be saved in the store.
> 
> If you're going to update this comment, please state what it is actually
> returning: i.e., a grant reference or -ve on error.
> 

OK, thanks, I shall update it when send patch v2 for it.

Thanks.
-- 
Chen Gang

Open share and attitude like air water and life which God blessed
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