From 8ba48e58bafb903a071ad1cb70411ed00514ccc4 Mon Sep 17 00:00:00 2001 From: Basavaraj Natikar Date: Tue, 11 Apr 2023 21:40:30 +0530 Subject: [PATCH] HID: amd_sfh: Handle "no sensors" enabled for SFH1.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit [ Upstream commit 8455cbb25927013b3417ab619dced1c0e87708af ] Based on num_hid_devices, each sensor device is initialized. If "no sensors" is initialized, amd_sfh work initialization and scheduling doesn’t make sense and returns EOPNOTSUPP to stop driver probe. Hence, add a check for "no sensors" enabled to handle the special case. Fixes: 93ce5e0231d7 ("HID: amd_sfh: Implement SFH1.1 functionality") Signed-off-by: Basavaraj Natikar Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c index a1d6e08f..bb8bd78 100644 --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c @@ -112,6 +112,7 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata) cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]); if (cl_data->num_hid_devices == 0) return -ENODEV; + cl_data->is_any_sensor_enabled = false; INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work); INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer); @@ -170,6 +171,7 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata) status = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED; if (status == SENSOR_ENABLED) { + cl_data->is_any_sensor_enabled = true; cl_data->sensor_sts[i] = SENSOR_ENABLED; rc = amdtp_hid_probe(i, cl_data); if (rc) { @@ -186,12 +188,21 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata) cl_data->sensor_sts[i]); goto cleanup; } + } else { + cl_data->sensor_sts[i] = SENSOR_DISABLED; } dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n", cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]), cl_data->sensor_sts[i]); } + if (!cl_data->is_any_sensor_enabled) { + dev_warn(dev, "Failed to discover, sensors not enabled is %d\n", + cl_data->is_any_sensor_enabled); + rc = -EOPNOTSUPP; + goto cleanup; + } + schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP)); return 0; -- 2.7.4