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Fri, 08 May 2026 11:05:17 -0700 (PDT) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:cda6:5a1c:b564:d3ee]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6dd32afasm11654825e9.5.2026.05.08.11.05.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2026 11:05:16 -0700 (PDT) From: Daniel Lezcano To: daniel.lezcano@oss.qualcomm.com, lukasz.luba@arm.com, rafael@kernel.org Cc: rui.zhang@intel.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/4] thermal/core: Add dedicated release callback for cooling devices Date: Fri, 8 May 2026 20:05:08 +0200 Message-ID: <20260508180511.1306659-2-daniel.lezcano@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260508180511.1306659-1-daniel.lezcano@oss.qualcomm.com> References: <20260508180511.1306659-1-daniel.lezcano@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA4MDE4MCBTYWx0ZWRfX8byeB3jKtcJI rkjX6GbCAJRIr6VYdqMiVjP+dDpA+bU6tgY4eZNM9owbZSOzPLKyrPMw8j4kLPHd3nAVW85V+uY PdKBfuq874HMRSaSHmCzjH+mIVsQL4caMk6kOckBq2tM8m/jAEMtsZ8bqmseoc/Q3x+GbxYEyt4 hJ1NQORIb5kx4rlfd9/Nm64VJ2wyj6eY6RfdkZjJUMIbW+g0LNvBPHQPYcxc4UyHyyCNduxIdjQ 0wgR8iyJ00n/cxprgw5rcdHO9e6ouvFa2J9YTI/pAHVi3bg/5AzdmHRTkPh64XDg1HEj/+MnJXZ yZmOw0r7TxgZMo+zlBqn53KuYfKyPBqIBmXpD4hpDgo3Zyu+o6XGe/ReqqLdq5DXbxCMgtGxRdP iSgqM0LRI2ic5MGgfyTQKt/w0u17xZPQnA3hgJtnj8Lg3zQrRUKoqvkIHhrs8/hZxM4rWOtjQFW 69YHi6xfXxVXLRKPAwQ== X-Authority-Analysis: v=2.4 cv=GLU41ONK c=1 sm=1 tr=0 ts=69fe25de cx=c_pps a=DUEm7b3gzWu7BqY5nP7+9g==:117 a=xqWC_Br6kY4A:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=qPbDZLIEKKa8xmaCxtMA:9 a=-aSRE8QhW-JAV6biHavz:22 X-Proofpoint-ORIG-GUID: -t0TaT2Dkv66C8zUnF-fAZSzgv_MDSE6 X-Proofpoint-GUID: -t0TaT2Dkv66C8zUnF-fAZSzgv_MDSE6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-07_02,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 adultscore=0 malwarescore=0 phishscore=0 clxscore=1015 impostorscore=0 spamscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605080180 The thermal class release callback currently handles both thermal zones and cooling devices by checking the device name prefix. Move the cooling device cleanup to a dedicated struct device release callback. This avoids relying on device names to select the release path and keeps the cooling device lifetime handling local to the cooling device object. Signed-off-by: Daniel Lezcano --- drivers/thermal/thermal_core.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 2f4e2dc46b8f..cf5d4a9c11fe 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -952,7 +952,6 @@ static void thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, static void thermal_release(struct device *dev) { struct thermal_zone_device *tz; - struct thermal_cooling_device *cdev; if (!strncmp(dev_name(dev), "thermal_zone", sizeof("thermal_zone") - 1)) { @@ -962,13 +961,6 @@ static void thermal_release(struct device *dev) ida_destroy(&tz->ida); mutex_destroy(&tz->lock); complete(&tz->removal); - } else if (!strncmp(dev_name(dev), "cooling_device", - sizeof("cooling_device") - 1)) { - cdev = to_cooling_device(dev); - thermal_cooling_device_destroy_sysfs(cdev); - kfree_const(cdev->type); - ida_free(&thermal_cdev_ida, cdev->id); - kfree(cdev); } } @@ -1040,6 +1032,16 @@ static void thermal_cooling_device_init_complete(struct thermal_cooling_device * thermal_zone_cdev_bind(tz, cdev); } +static void thermal_cdev_release(struct device *dev) +{ + struct thermal_cooling_device *cdev = to_cooling_device(dev); + + thermal_cooling_device_destroy_sysfs(cdev); + kfree_const(cdev->type); + ida_free(&thermal_cdev_ida, cdev->id); + kfree(cdev); +} + /** * __thermal_cooling_device_register() - register a new thermal cooling device * @np: a pointer to a device tree node. @@ -1093,6 +1095,7 @@ __thermal_cooling_device_register(struct device_node *np, cdev->ops = ops; cdev->updated = false; cdev->device.class = &thermal_class; + cdev->device.release = thermal_cdev_release; cdev->devdata = devdata; ret = cdev->ops->get_max_state(cdev, &cdev->max_state); -- 2.43.0