From 2bf18c8f8c3a7e242e5c9ad2887e5243ff8c2234 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 5 Aug 2020 14:07:07 +0200 Subject: [PATCH] hso: fix bailout in error case of probe commit 5fcfb6d0bfcda17f0d0656e4e5b3710af2bbaae5 upstream. The driver tries to reuse code for disconnect in case of a failed probe. If resources need to be freed after an error in probe, the netdev must not be freed because it has never been registered. Fix it by telling the helper which path we are in. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller Signed-off-by: Ovidiu Panait Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/hso.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 9ad1f093c4ae1..8aa2e85f61a74 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -2354,7 +2354,7 @@ static int remove_net_device(struct hso_device *hso_dev) } /* Frees our network device */ -static void hso_free_net_device(struct hso_device *hso_dev) +static void hso_free_net_device(struct hso_device *hso_dev, bool bailout) { int i; struct hso_net *hso_net = dev2net(hso_dev); @@ -2377,7 +2377,7 @@ static void hso_free_net_device(struct hso_device *hso_dev) kfree(hso_net->mux_bulk_tx_buf); hso_net->mux_bulk_tx_buf = NULL; - if (hso_net->net) + if (hso_net->net && !bailout) free_netdev(hso_net->net); kfree(hso_dev); @@ -2553,7 +2553,7 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface, return hso_dev; exit: - hso_free_net_device(hso_dev); + hso_free_net_device(hso_dev, true); return NULL; } @@ -3120,7 +3120,7 @@ static void hso_free_interface(struct usb_interface *interface) rfkill_unregister(rfk); rfkill_destroy(rfk); } - hso_free_net_device(network_table[i]); + hso_free_net_device(network_table[i], false); } } } -- 2.39.5