From 5d4d0f15657535f6a122ab26d47230b5c2b944af Mon Sep 17 00:00:00 2001
From: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Date: Sat, 23 Jul 2022 11:40:33 +0530
Subject: [PATCH] HID: amd_sfh: Handle condition of "no sensors"
Git-commit: 5d4d0f15657535f6a122ab26d47230b5c2b944af
Patch-mainline: v6.0-rc1
References: git-fixes
Add a check for num_hid_devices to handle special case the situation
of "no sensors".
Fixes: 4b2c53d93a4b ("SFH:Transport Driver to add support of AMD Sensor Fusion Hub (SFH)")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/hid/amd-sfh-hid/amd_sfh_client.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c
@@ -145,6 +145,8 @@ int amd_sfh_hid_client_init(struct amd_m
dev = &privdata->pdev->dev;
cl_data->num_hid_devices = amd_mp2_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
+ if (cl_data->num_hid_devices == 0)
+ return -ENODEV;
INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);