linux-kernel - Re: [PATCH] USB: emi26: Delete an error message for a failed memory allocation in emi26

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Date:   Wed, 6 Dec 2017 14:25:01 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Julia Lawall <julia.lawall@...6.fr>, linux-usb@...r.kernel.org
Cc:     Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Johan Hovold <johan@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] USB: emi26: Delete an error message for a failed memory
 allocation in emi26_writememory()

>> @@ -42,10 +42,9 @@ static int emi26_writememory (struct usb_device *dev, int address,
>>  	int result;
>>  	unsigned char *buffer =  kmemdup(data, length, GFP_KERNEL);
>>
>> -	if (!buffer) {
>> -		dev_err(&dev->dev, "kmalloc(%d) failed.\n", length);
> 
> I guess the length information would not be so easy to find in the backtrace.

Why do you “guess”?


>> +	if (!buffer)
>>  		return -ENOMEM;
>> -	}

Would we like to achieve another consensus on the data which are provided by
a default Linux allocation failure report?

Regards,
Markus