On removal of hid device during SFH set report may cause NULL pointer
exception. Hence add NULL check for hid device before accessing.
Fixes: 4b2c53d93a4b ("SFH:Transport Driver to add support of AMD Sensor Fusion Hub (SFH)")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
---
drivers/hid/amd-sfh-hid/amd_sfh_hid.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
index 1089134030b0..1b18291fc5af 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
@@ -101,11 +101,15 @@ static int amdtp_wait_for_response(struct hid_device *hid)
void amdtp_hid_wakeup(struct hid_device *hid)
{
- struct amdtp_hid_data *hid_data = hid->driver_data;
- struct amdtp_cl_data *cli_data = hid_data->cli_data;
+ struct amdtp_hid_data *hid_data;
+ struct amdtp_cl_data *cli_data;
- cli_data->request_done[cli_data->cur_hid_dev] = true;
- wake_up_interruptible(&hid_data->hid_wait);
+ if (hid) {
+ hid_data = hid->driver_data;
+ cli_data = hid_data->cli_data;
+ cli_data->request_done[cli_data->cur_hid_dev] = true;
+ wake_up_interruptible(&hid_data->hid_wait);
+ }
}
static struct hid_ll_driver amdtp_hid_ll_driver = {
--
2.25.1
