linux-kernel - Re: [PATCH] gdrom: fix a memory leak bug

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Message-ID: <f0ef28cb-7f4e-e346-7b88-aaf85ae0b5f5@kernel.dk>
Date:   Sat, 29 Dec 2018 08:21:58 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Wenwen Wang <wang6495@....edu>
Cc:     Maurizio Lombardi <mlombard@...hat.com>,
        zhong jiang <zhongjiang@...wei.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gdrom: fix a memory leak bug

On 12/26/18 7:15 PM, Wenwen Wang wrote:
> In probe_gdrom(), the buffer pointed by 'gd.cd_info' is allocated through
> kzalloc() and is used to hold the information of the gdrom device. To
> register and unregister the device, the pointer 'gd.cd_info' is passed to
> the functions register_cdrom() and unregister_cdrom(), respectively.
> However, this buffer is not freed after it is used, which can cause a
> memory leak bug.
> 
> This patch simply frees the buffer 'gd.cd_info' in exit_gdrom() to fix the
> above issue.

Applied, thanks.

-- 
Jens Axboe