From 964e9e1288fd150c72de1e6045d3072a8d07fcf4 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Wed, 21 Dec 2022 09:30:11 +0100 Subject: [PATCH] media: ipu3-cio2: Fix PM runtime usage_count in driver unbind commit 909d3096ac99fa2289f9b8945a3eab2269947a0a upstream. Get the PM runtime usage_count and forbid PM runtime at driver unbind. The opposite is being done in probe() already. Fixes: commit c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver") Cc: stable@vger.kernel.org # for >= 4.16 Signed-off-by: Sakari Ailus Reviewed-by: Bingbu Cao Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/pci/intel/ipu3/ipu3-cio2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c index 7808ec1052bf..3457f0f545c4 100644 --- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c +++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c @@ -1871,6 +1871,9 @@ 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)