This is a note to let you know that I've just added the patch titled
HID: amd_sfh: Add NULL check for hid device
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-amd_sfh-add-null-check-for-hid-device.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ca466a8f392e3c969630b5cf5c9f0558fc853084
Author: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
Date: Tue Jul 12 23:48:26 2022 +0530
HID: amd_sfh: Add NULL check for hid device
[ Upstream commit 06aa2a43c307cf4096f422dcb575e5d2913e528f ]
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>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
index e2a9679e32be..54fe224050f9 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_hid.c
@@ -100,11 +100,15 @@ 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 = {
