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Subject: media: mgb4: Fix double debugfs remove Author: Martin Tůma martin.tuma@digiteqautomotive.com 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@digiteqautomotive.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org [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);