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From:   Jiasheng Jiang <jiasheng@iscas.ac.cn>
To:     leon@kernel.org
Cc:     jiri@resnulli.us, jesse.brandeburg@intel.com,
        anthony.l.nguyen@intel.com, davem@davemloft.net,
        edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
        intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jiasheng Jiang <jiasheng@iscas.ac.cn>
Subject: Re: [PATCH net v2] ice: Add check for kzalloc
Date:   Thu,  8 Dec 2022 18:06:03 +0800
Message-Id: <20221208100603.29588-1-jiasheng@iscas.ac.cn>
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On Thu, Dec 08, 2022 at 05:25:02PM +0800, Leon Romanovsky wrote:
>> +err_out:
>> +	for (j = 0; j < i; j++) {
> 
> You don't need an extra variable, "while(i--)" will do the trick.

No, the right range is [0, i - 1], but the "while(i--)" is [1, i].
If using "while(i--)", the code should be "tty_port_destroy(pf->gnss_tty_port[i - 1]);".
It will be more complex.
Therefore, it is worthwhile to use an extra varaible.

Thanks,
Jiang