A crash was reported in amd-sfh related to hid core initialization before SFH initialization has run.

``` amdtp_hid_request+0x36/0x50 [amd_sfh 2e3095779aada9fdb1764f08ca578ccb14e41fe4] sensor_hub_get_feature+0xad/0x170 [hid_sensor_hub d6157999c9d260a1bfa6f27d4a0dc2c3e2c5654e] hid_sensor_parse_common_attributes+0x217/0x310 [hid_sensor_iio_common 07a7935272aa9c7a28193b574580b3e953a64ec4] hid_gyro_3d_probe+0x7f/0x2e0 [hid_sensor_gyro_3d 9f2eb51294a1f0c0315b365f335617cbaef01eab] platform_probe+0x44/0xa0 really_probe+0x19e/0x3e0 ```

Ensure that sensors have been set up before calling into amd_sfh_get_report() or amd_sfh_set_report().

Cc: stable@vger.kernel.org Cc: Linux regression tracking (Thorsten Leemhuis) regressions@leemhuis.info Fixes: 7bcfdab3f0c6 ("HID: amd_sfh: if no sensors are enabled, clean up") Reported-by: Haochen Tong linux@hexchain.org Link: https://lore.kernel.org/all/3250319.ancTxkQ2z5@zen/T/ Signed-off-by: Mario Limonciello mario.limonciello@amd.com --- drivers/hid/amd-sfh-hid/amd_sfh_client.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_client.c b/drivers/hid/amd-sfh-hid/amd_sfh_client.c index d9b7b01900b5..88f3d913eaa1 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c +++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c @@ -25,6 +25,9 @@ void amd_sfh_set_report(struct hid_device *hid, int report_id, struct amdtp_cl_data *cli_data = hid_data->cli_data; int i;

+ if (!cli_data->is_any_sensor_enabled) + return; + for (i = 0; i < cli_data->num_hid_devices; i++) { if (cli_data->hid_sensor_hubs[i] == hid) { cli_data->cur_hid_dev = i; @@ -41,6 +44,9 @@ int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type) struct request_list *req_list = &cli_data->req_list; int i;

+ if (!cli_data->is_any_sensor_enabled) + return -ENODEV; + for (i = 0; i < cli_data->num_hid_devices; i++) { if (cli_data->hid_sensor_hubs[i] == hid) { struct request_list *new = kzalloc(sizeof(*new), GFP_KERNEL);