linux-kernel - Re: [PATCH 1/3] net-gianfar: Less function calls in gfar_ethflow_to_filer

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Message-ID: <56867607.4090907@users.sourceforge.net>
Date:	Fri, 1 Jan 2016 13:50:15 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	netdev@...r.kernel.org,
	Claudiu Manoil <claudiu.manoil@...escale.com>,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/3] net-gianfar: Less function calls in
 gfar_ethflow_to_filer_table() after error detection

>> +++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
>> @@ -778,11 +778,13 @@ static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
>>  
>>  	local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
>>  				    GFP_KERNEL);
>> +	if (!local_rqfpr)
>> +		return 1;
> 
> Why return 1?  Previously 0 was returned.

You are right. - Unfortunately, I made a mistake at this place
of my update suggestion.


> Normally, one returns -ENOMEM for this case, but it looks like this 
> function is returning 0 on failure.

Should a symbol like "false" be used instead of such a special number?

Regards,
Markus

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