netdev - Re: [net-next 06/10] ixgbe: eliminate Smatch warnings in ixgbe

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Date:	Wed, 21 Nov 2012 12:04:20 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	dan.carpenter@...cle.com
Cc:	jeffrey.t.kirsher@...el.com, joshua.a.hay@...el.com,
	netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com
Subject: Re: [net-next 06/10] ixgbe: eliminate Smatch warnings in
 ixgbe_debugfs.c

From: Dan Carpenter <dan.carpenter@...cle.com>
Date: Wed, 21 Nov 2012 14:04:09 +0300

> On Wed, Nov 21, 2012 at 02:47:32AM -0800, Jeff Kirsher wrote:
>> +	len = simple_write_to_buffer(ixgbe_dbg_reg_ops_buf,
>> +				     sizeof(ixgbe_dbg_reg_ops_buf)-1,
>> +				     ppos,
>> +				     buffer,
>> +				     count);
>> +	if (len < 0)
>> +		return -EFAULT;
> 
> Any negative return is bad.
> 
> 	if (len)
> 		return len;
 ...
>> @@ -187,15 +196,15 @@ static ssize_t ixgbe_dbg_netdev_ops_write(struct file *filp,
 ...
>> +	if (len < 0)
>> +		return -EFAULT;
> 
> Same.

Agreed.
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