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[173.79.56.208]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4771d18f7d4sm12292181cf.37.2025.03.21.06.59.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Mar 2025 06:59:46 -0700 (PDT) Date: Fri, 21 Mar 2025 09:59:44 -0400 From: Gregory Price To: Rakie Kim Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, joshua.hahnjy@gmail.com, dan.j.williams@intel.com, ying.huang@linux.alibaba.com, david@redhat.com, Jonathan.Cameron@huawei.com, kernel_team@skhynix.com, honggyu.kim@sk.com, yunjeong.mun@sk.com Subject: Re: [PATCH v3 1/3] mm/mempolicy: Fix memory leaks in weighted interleave sysfs Message-ID: References: <20250320041749.881-1-rakie.kim@sk.com> <20250320041749.881-2-rakie.kim@sk.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250320041749.881-2-rakie.kim@sk.com> On Thu, Mar 20, 2025 at 01:17:46PM +0900, Rakie Kim wrote: > Memory leaks occurred when removing sysfs attributes for weighted > interleave. Improper kobject deallocation led to unreleased memory > when initialization failed or when nodes were removed. > > This patch resolves the issue by replacing unnecessary `kfree()` > calls with `kobject_put()`, ensuring proper cleanup and preventing > memory leaks. > > By correctly using `kobject_put()`, the release function now > properly deallocates memory without causing resource leaks, > thereby improving system stability. > > Fixes: dce41f5ae253 ("mm/mempolicy: implement the sysfs-based weighted_interleave interface") > Signed-off-by: Rakie Kim Reviewed-by: Gregory Price