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Subject: media: mgb4: Fix double debugfs remove
Author: Martin Tůma <martin.tuma@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue May 21 18:22:54 2024 +0200
Fixes an error where debugfs_remove_recursive() is called first on a parent
directory and then again on a child which causes a kernel panic.
Signed-off-by: Martin Tůma <martin.tuma@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver")
Cc: <stable@xxxxxxxxxxxxxxx>
[hverkuil: added Fixes/Cc tags]
drivers/media/pci/mgb4/mgb4_core.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/drivers/media/pci/mgb4/mgb4_core.c b/drivers/media/pci/mgb4/mgb4_core.c
index 60498a5abebf..ab4f07e2e560 100644
--- a/drivers/media/pci/mgb4/mgb4_core.c
+++ b/drivers/media/pci/mgb4/mgb4_core.c
@@ -642,9 +642,6 @@ static void mgb4_remove(struct pci_dev *pdev)
struct mgb4_dev *mgbdev = pci_get_drvdata(pdev);
int i;
-#ifdef CONFIG_DEBUG_FS
- debugfs_remove_recursive(mgbdev->debugfs);
-#endif
#if IS_REACHABLE(CONFIG_HWMON)
hwmon_device_unregister(mgbdev->hwmon_dev);
#endif
@@ -659,6 +656,10 @@ static void mgb4_remove(struct pci_dev *pdev)
if (mgbdev->vin[i])
mgb4_vin_free(mgbdev->vin[i]);
+#ifdef CONFIG_DEBUG_FS
+ debugfs_remove_recursive(mgbdev->debugfs);
+#endif
+
device_remove_groups(&mgbdev->pdev->dev, mgb4_pci_groups);
free_spi(mgbdev);
free_i2c(mgbdev);
