This is a note to let you know that I've just added the patch titled
hso: fix bailout in error case of probe
to the 5.4-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:
hso-fix-bailout-in-error-case-of-probe.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5fcfb6d0bfcda17f0d0656e4e5b3710af2bbaae5 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@xxxxxxxx>
Date: Wed, 5 Aug 2020 14:07:07 +0200
Subject: hso: fix bailout in error case of probe
From: Oliver Neukum <oneukum@xxxxxxxx>
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 <oneukum@xxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ovidiu Panait <ovidiu.panait@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/usb/hso.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2354,7 +2354,7 @@ static int remove_net_device(struct hso_
}
/* 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 h
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
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 us
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
- hso_free_net_device(network_table[i]);
+ hso_free_net_device(network_table[i], false);
}
}
}
Patches currently in stable-queue which might be from oneukum@xxxxxxxx are
queue-5.4/hso-fix-bailout-in-error-case-of-probe.patch
