| Message ID | 20230201133751.305474-1-sakari.ailus@linux.intel.com |
|---|---|
| State | Accepted |
| Commit | 909d3096ac99fa2289f9b8945a3eab2269947a0a |
| Headers | show |
| Series | [1/1] media: ipu3-cio2: Fix PM runtime usage_count in driver unbind | expand |
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Hi Bingbu,
On Wed, Feb 01, 2023 at 04:00:50PM +0000, Cao, Bingbu wrote:
> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
I'm adding:
Fixes: commit c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver")
Cc: stable@vger.kernel.org # for >= 4.16
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c index 390bd5ea3472..3b76a9d0383a 100644 --- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c +++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c @@ -1843,6 +1843,9 @@ static void cio2_pci_remove(struct pci_dev *pci_dev) v4l2_device_unregister(&cio2->v4l2_dev); media_device_cleanup(&cio2->media_dev); mutex_destroy(&cio2->lock); + + pm_runtime_forbid(&pci_dev->dev); + pm_runtime_get_noresume(&pci_dev->dev); } static int __maybe_unused cio2_runtime_suspend(struct device *dev)
Get the PM runtime usage_count and forbid PM runtime at driver unbind. The opposite is being done in probe() already. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 3 +++ 1 file changed, 3 insertions(+)