[PATCH 3/3] media: staging/ipu7: cleanup the MMU correctly in IPU7 driver release

[bingbu.cao@intel.com]

From: Bingbu Cao <bingbu.cao@intel.com>

IPU7 ISYS and PSYS auxiliary devices are released after
ipu7_bus_del_devices(), so driver can not reference the MMU devices
from ISYS and PSYS auxiliary devices, so move the MMUs cleanup before
releasing the auxiliary devices.

Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver")
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
---
 drivers/staging/media/ipu7/ipu7.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/ipu7/ipu7.c b/drivers/staging/media/ipu7/ipu7.c
index aef931d23510..3de41b3d1ae1 100644
--- a/drivers/staging/media/ipu7/ipu7.c
+++ b/drivers/staging/media/ipu7/ipu7.c
@@ -2644,6 +2644,9 @@ static void ipu7_pci_remove(struct pci_dev *pdev)
 	if (!IS_ERR_OR_NULL(isp->fw_code_region))
 		vfree(isp->fw_code_region);
 
+	ipu7_mmu_cleanup(isp->isys->mmu);
+	ipu7_mmu_cleanup(isp->psys->mmu);
+
 	ipu7_bus_del_devices(pdev);
 
 	pm_runtime_forbid(&pdev->dev);
@@ -2653,8 +2656,6 @@ static void ipu7_pci_remove(struct pci_dev *pdev)
 
 	release_firmware(isp->cpd_fw);
 
-	ipu7_mmu_cleanup(isp->psys->mmu);
-	ipu7_mmu_cleanup(isp->isys->mmu);
 }
 
 static void ipu7_pci_reset_prepare(struct pci_dev *pdev)
-- 
2.34.1