[U-Boot] [PATCH 4/5 V2] NAND: Make page, erase, oob size available via cmd_nand

[Scott Wood]

On 09/27/2011 02:38 PM, Marek Vasut wrote:
> On Tuesday, September 27, 2011 09:01:53 PM Scott Wood wrote:
>> On Thu, Sep 22, 2011 at 03:57:26AM +0200, Marek Vasut wrote:
>>> +	/* Set geometry info */
>>> +	memset(buf, 0, bufsz);
>>> +	sprintf(buf, "%x", nand->writesize);
>>> +	setenv("nand_writesize", buf);
>>> +
>>> +	memset(buf, 0, bufsz);
>>> +	sprintf(buf, "%x", nand->oobsize);
>>> +	setenv("nand_oobsize", buf);
>>> +
>>> +	memset(buf, 0, bufsz);
>>> +	sprintf(buf, "%x", nand->erasesize);
>>> +	setenv("nand_erasesize", buf);
>>
>> Why the memsets?
> 
> To clear the memory from previous usage ?

What part of the previous usage will both survive the sprintf() and be
looked at by setenv()?

-Scott