[PATCH 02/02] force module loaded with partitions set

[Yang Rui Rui]

On 03/14/2011 04:43 PM, Artem Bityutskiy wrote:
> On Mon, 2011-03-14 at 09:51 +0800, Yang Ruirui wrote:
>> From: Yang Ruirui<ruirui.r.yang at tieto.com>
>>
>> partitions can not be set after module loaded, the moduel param mode is 0444.
>>
>> this patch force module loaded with param partitions set, if user does not
>> set partitions then give out a warning and return -EINVAL
>>
>> Signed-off-by: Yang Ruirui<ruirui.r.yang at tieto.com>
>> Tested-by: Shao Yanqing<yanqing.shao at tieto.com>
>> Tested-by: Xiao Yang<yang.xiao at tieto.com>
>> ---
>>   drivers/mtd/mtdswap.c |    6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> --- mtd-2.6-fc2ff59.orig/drivers/mtd/mtdswap.c	2011-03-14 09:36:09.283329099 +0800
>> +++ mtd-2.6-fc2ff59/drivers/mtd/mtdswap.c	2011-03-14 09:46:30.229993534 +0800
>> @@ -1569,6 +1569,12 @@ static struct mtd_blktrans_ops mtdswap_o
>>
>>   static int __init mtdswap_modinit(void)
>>   {
>> +	if (!partitions[0]) {
>> +		printk(KERN_WARNING
>> +			"Please load mtdswap with correct partitions param\n");
>> +		return -EINVAL;
>> +	}
>
> I think a similar check is done in mtdswap_add_mtd() ?
>
>

Yes, that one should be removed if this is ok. This module just waste memory without partitions set. And there's no chance to pass in the params.


-- 
Thanks
Yang Ruirui