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Sun, 28 Dec 2025 22:31:52 -0800 (PST) Received: from hu-dikshita-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7e797ab9sm28308962b3a.59.2025.12.28.22.31.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Dec 2025 22:31:52 -0800 (PST) From: Dikshita Agarwal Date: Mon, 29 Dec 2025 12:01:23 +0530 Subject: [PATCH v2 4/6] Revert "media: iris: Add sanity check for stop streaming" 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="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251229-iris-fixes-v2-4-6dce2063d782@oss.qualcomm.com> References: <20251229-iris-fixes-v2-0-6dce2063d782@oss.qualcomm.com> In-Reply-To: <20251229-iris-fixes-v2-0-6dce2063d782@oss.qualcomm.com> To: Vikash Garodia , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Hans Verkuil , Stefan Schmidt , Hans Verkuil , Wangao Wang Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue , Dikshita Agarwal X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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Buffers were not returned to vb2 when the instance was already in error state, triggering warnings in the vb2 core because buffer completion was skipped. 2. If a session failed early (e.g. unsupported configuration), the instance transitioned to IRIS_INST_ERROR. When userspace attempted to stop streaming for cleanup, stop_streaming was skipped due to the added check, preventing proper teardown and leaving the firmware in an inconsistent state. Fixes: ad699fa78b59 ("media: iris: Add sanity check for stop streaming") Signed-off-by: Dikshita Agarwal Reviewed-by: Vikash Garodia --- drivers/media/platform/qcom/iris/iris_vb2.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/qcom/iris/iris_vb2.c b/drivers/media/pl= atform/qcom/iris/iris_vb2.c index db8768d8a8f61c9ceb04e423d0a769d35114e20e..139b821f7952feb33b21a7045ae= f9e8a4782aa3c 100644 --- a/drivers/media/platform/qcom/iris/iris_vb2.c +++ b/drivers/media/platform/qcom/iris/iris_vb2.c @@ -231,8 +231,6 @@ void iris_vb2_stop_streaming(struct vb2_queue *q) return; =20 mutex_lock(&inst->lock); - if (inst->state =3D=3D IRIS_INST_ERROR) - goto exit; =20 if (!V4L2_TYPE_IS_OUTPUT(q->type) && !V4L2_TYPE_IS_CAPTURE(q->type)) @@ -243,10 +241,10 @@ void iris_vb2_stop_streaming(struct vb2_queue *q) goto exit; =20 exit: - if (ret) { - iris_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR); + iris_helper_buffers_done(inst, q->type, VB2_BUF_STATE_ERROR); + if (ret) iris_inst_change_state(inst, IRIS_INST_ERROR); - } + mutex_unlock(&inst->lock); } =20 --=20 2.34.1