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Subject: Re: [PATCH -next v2] block: Fix the partition start may overflow in
 add_partition()
To:     Eric Biggers <ebiggers@kernel.org>
CC:     <axboe@kernel.dk>, <linux-block@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <yi.zhang@huawei.com>,
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References: <20230525072041.3701176-1-zhongjinghua@huawei.com>
 <20230526053557.GA875@sol.localdomain>
From:   zhongjinghua <zhongjinghua@huawei.com>
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在 2023/5/26 13:35, Eric Biggers 写道:
> On Thu, May 25, 2023 at 03:20:41PM +0800, Zhong Jinghua wrote:
>> +	if (p.start < 0 || p.length <= 0 || p.start + p.length < 0)
>> +		return -EINVAL;
> Were zero-length partitions allowed before?
Before this patch,  the io to the zero-length partition failed, I think 
it is meaningless, and it was fixed by the way
> - Eric