| Message ID | 20230705213010.390849-2-hdegoede@redhat.com |
|---|---|
| State | Accepted |
| Commit | 284be5693163343e1cf17c03917eecd1d6681bcf |
| Headers | show |
| Series | media: ipu-bridge: Shared with atomisp, rework VCM instantiation | expand |
diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c index 62daa8c1f6b1..f0927f80184d 100644 --- a/drivers/media/pci/intel/ipu-bridge.c +++ b/drivers/media/pci/intel/ipu-bridge.c @@ -308,6 +308,11 @@ static int ipu_bridge_connect_sensor(const struct ipu_sensor_config *cfg, } sensor = &bridge->sensors[bridge->n_sensors]; + /* + * Borrow our adev ref to the sensor for now, on success + * acpi_dev_get(adev) is done further below. + */ + sensor->adev = adev; ret = ipu_bridge_read_acpi_buffer(adev, "SSDB", &sensor->ssdb,
When ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() run sensor->adev is not set yet. So if either of the dev_warn() calls about unknown values are hit this will lead to a NULL pointer deref. Set sensor->adev earlier, with a borrowed ref to avoid making unrolling on errors harder, to fix this. Fixes: 485aa3df0dff ("media: ipu3-cio2: Parse sensor orientation and rotation") Cc: Fabian Wüthrich <me@fabwu.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/media/pci/intel/ipu-bridge.c | 5 +++++ 1 file changed, 5 insertions(+)