linux-kernel - Re: [PATCH] drm/amdkfd: Fix memory leaks according to error branches

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Date:   Fri, 19 Jun 2020 14:15:32 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Bernard Zhao <bernard@...o.com>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Cc:     opensource.kernel@...o.com, Aditya Pakki <pakki001@....edu>,
        Kangjie Lu <kjlu@....edu>, Navid Emamdoost <emamd001@....edu>,
        Qiushi Wu <wu000273@....edu>, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Felix Kühling <Felix.Kuehling@....com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH] drm/amdkfd: Fix memory leaks according to error branches

> The function kobject_init_and_add alloc memory like:
> kobject_init_and_add->kobject_add_varg->kobject_set_name_vargs
> ->kvasprintf_const->kstrdup_const->kstrdup->kmalloc_track_caller
> ->kmalloc_slab, in err branch this memory not free. If use
> kmemleak, this path maybe catched.
> These changes are to add kobject_put in kobject_init_and_add
> failed branch, fix potential memleak.

I suggest to improve this change description.

* Can an other wording variant be nicer?

* Will the tag “Fixes” become helpful?

Regards,
Markus