From: Basavaraj Natikar Basavaraj.Natikar@amd.com
[ Upstream commit 5d4d0f15657535f6a122ab26d47230b5c2b944af ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/amd-sfh-hid/amd_sfh_client.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_client.c b/drivers/hid/amd-sfh-hid/amd_sfh_client.c index 444acd9e2cd6..8be33cf3b6c2 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c +++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c @@ -155,6 +155,8 @@ int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata) 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);