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[83.60.94.205]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45a16deeb9asm25383705e9.19.2025.08.13.03.53.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Aug 2025 03:53:51 -0700 (PDT) From: Jorge Ramirez X-Google-Original-From: Jorge Ramirez Date: Wed, 13 Aug 2025 12:53:50 +0200 To: Dikshita Agarwal Cc: Vikash Garodia , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Hans Verkuil , Stefan Schmidt , Vedang Nagar , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Renjiang Han , Wangao Wang Subject: Re: [PATCH v2 02/24] media: iris: Report unreleased PERSIST buffers on session close Message-ID: References: <20250813-iris-video-encoder-v2-0-c725ff673078@quicinc.com> <20250813-iris-video-encoder-v2-2-c725ff673078@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@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: <20250813-iris-video-encoder-v2-2-c725ff673078@quicinc.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODExMDA3NSBTYWx0ZWRfX6hZvJ61J2dkK KT7kqOzPyR70OX31dwpdGAWM2HEgcYayoslOjv+m+WMPKhNlrbPPXECxIt+ZvLZgKEhSNXUDNOk CMaluDeMehH2z1C7aXjgVZ2jKcioJw9tXjueXOatyg+AorSrlkfUrr6Q+ahqMYVuRCIaBxc/qBj cD/2jUF984I0GaUFVKrMo5F4tYg2Q77E2RWIa/QbrPuVVfc5g+qYYKltkRrnXzhI7YOMYKLqtQ+ 1xWI6bCvfTiQihSsoEG5L7XtNivQ6USHGim8zdKm4LVICUnqtkfsWLMFHsJbAyJqqFzp9QM4EjN /hYG/GSzQ9IXwfG+lNPEb7GWLVr5EHwD5xVYqgi3xIEgf1NOFks6QWwUU/l5ASTMixLCzimrMDK hZ2cnRHJ X-Authority-Analysis: v=2.4 cv=TLZFS0la c=1 sm=1 tr=0 ts=689c6ec2 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=Rr2dNH5/fcnoRoBmcVUeRg==:17 a=kj9zAlcOel0A:10 a=2OwXVqhp2XgA:10 a=COk6AnOGAAAA:8 a=RE2RRPQ2WZmwf3aAuCMA:9 a=CjuIK1q_8ugA:10 a=iYH6xdkBrDN1Jqds4HTS:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: NQZUL_lrlb6CFf3rOMj8jNhLFfyEQC2V X-Proofpoint-ORIG-GUID: NQZUL_lrlb6CFf3rOMj8jNhLFfyEQC2V X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-12_08,2025-08-11_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 malwarescore=0 spamscore=0 priorityscore=1501 bulkscore=0 adultscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508110075 On 13/08/25 15:07:52, Dikshita Agarwal wrote: > Add error reporting for unreleased PERSIST internal buffers in > iris_check_num_queued_internal_buffers(). This ensures all buffer types > are checked and logged if not freed during session close, helping to > detect memory leaks and improve driver robustness. No change to buffer > lifecycle or allocation logic. > > Fixes: d2abb1ff5a3c ("media: iris: Verify internal buffer release on close") > Reviewed-by: Vikash Garodia > Tested-by: Vikash Garodia # X1E80100 > Signed-off-by: Dikshita Agarwal > --- > drivers/media/platform/qcom/iris/iris_vidc.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c > index 8285bdaf9466d4bea0f89a3b1943ed7d6c014b7d..96313856a026efaff40da97eaaa63e847172cd57 100644 > --- a/drivers/media/platform/qcom/iris/iris_vidc.c > +++ b/drivers/media/platform/qcom/iris/iris_vidc.c > @@ -247,6 +247,14 @@ static void iris_check_num_queued_internal_buffers(struct iris_inst *inst, u32 p > dev_err(inst->core->dev, "%d buffer of type %d not released", > count, internal_buf_type[i]); > } > + > + buffers = &inst->buffers[BUF_PERSIST]; > + > + count = 0; > + list_for_each_entry_safe(buf, next, &buffers->list, list) > + count++; I believe at this point is not safe to dereference buf > + if (count) > + dev_err(inst->core->dev, "%d buffer of type %d not released", count, buf->type); > } > > int iris_close(struct file *filp) > > -- > 2.34.1 > >