This is a note to let you know that I've just added the patch titled net: davicom: Fix regulator not turned off on driver removal to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-davicom-fix-regulator-not-turned-off-on-driver-removal.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b Mon Sep 17 00:00:00 2001 From: Paul Cercueil <paul@xxxxxxxxxxxxxxx> Date: Sun, 7 Mar 2021 13:17:48 +0000 Subject: net: davicom: Fix regulator not turned off on driver removal From: Paul Cercueil <paul@xxxxxxxxxxxxxxx> commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b upstream. We must disable the regulator that was enabled in the probe function. Fixes: 7994fe55a4a2 ("dm9000: Add regulator and reset support to dm9000") Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/ethernet/davicom/dm9000.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -144,6 +144,8 @@ struct board_info { u32 wake_state; int ip_summed; + + struct regulator *power_supply; }; /* debug code */ @@ -1494,6 +1496,8 @@ dm9000_probe(struct platform_device *pde db->dev = &pdev->dev; db->ndev = ndev; + if (!IS_ERR(power)) + db->power_supply = power; spin_lock_init(&db->lock); mutex_init(&db->addr_lock); @@ -1775,10 +1779,13 @@ static int dm9000_drv_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); + struct board_info *dm = to_dm9000_board(ndev); unregister_netdev(ndev); - dm9000_release_board(pdev, netdev_priv(ndev)); + dm9000_release_board(pdev, dm); free_netdev(ndev); /* free device structure */ + if (dm->power_supply) + regulator_disable(dm->power_supply); dev_dbg(&pdev->dev, "released and freed device\n"); return 0; Patches currently in stable-queue which might be from paul@xxxxxxxxxxxxxxx are queue-4.4/net-davicom-fix-regulator-not-turned-off-on-failed-probe.patch queue-4.4/net-davicom-fix-regulator-not-turned-off-on-driver-removal.patch