This is a note to let you know that I've just added the patch titled
ieee802154: fix error handling in ieee802154fake_probe()
to the 3.17-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:
ieee802154-fix-error-handling-in-ieee802154fake_probe.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed Dec 3 17:06:35 PST 2014
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Date: Sat, 15 Nov 2014 02:11:59 +0300
Subject: ieee802154: fix error handling in ieee802154fake_probe()
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
[ Upstream commit 8c2dd54485ccee7fc4086611e188478584758c8d ]
In case of any failure ieee802154fake_probe() just calls unregister_netdev().
But it does not look safe to unregister netdevice before it was registered.
The patch implements straightforward resource deallocation in case of
failure in ieee802154fake_probe().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ieee802154/fakehard.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
--- a/drivers/net/ieee802154/fakehard.c
+++ b/drivers/net/ieee802154/fakehard.c
@@ -377,17 +377,20 @@ static int ieee802154fake_probe(struct p
err = wpan_phy_register(phy);
if (err)
- goto out;
+ goto err_phy_reg;
err = register_netdev(dev);
- if (err < 0)
- goto out;
+ if (err)
+ goto err_netdev_reg;
dev_info(&pdev->dev, "Added ieee802154 HardMAC hardware\n");
return 0;
-out:
- unregister_netdev(dev);
+err_netdev_reg:
+ wpan_phy_unregister(phy);
+err_phy_reg:
+ free_netdev(dev);
+ wpan_phy_free(phy);
return err;
}
Patches currently in stable-queue which might be from khoroshilov@xxxxxxxxx are
queue-3.17/ieee802154-fix-error-handling-in-ieee802154fake_probe.patch
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