* Patch "r8169: fix setting driver_data after register_netdev" has been added to the 4.9-stable tree
@ 2018-04-11 9:03 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2018-04-11 9:03 UTC (permalink / raw)
To: hkallweit1, davem, gregkh; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
r8169: fix setting driver_data after register_netdev
to the 4.9-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:
r8169-fix-setting-driver_data-after-register_netdev.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Wed Apr 11 10:26:56 CEST 2018
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 26 Mar 2018 19:19:30 +0200
Subject: r8169: fix setting driver_data after register_netdev
From: Heiner Kallweit <hkallweit1@gmail.com>
[ Upstream commit 19c9ea363a244f85f90a424f9936e6d56449e33c ]
pci_set_drvdata() is called only after registering the net_device,
therefore we could run into a NPE if one of the functions using
driver_data is called before it's set.
Fix this by calling pci_set_drvdata() before registering the
net_device.
This fix is a candidate for stable. As far as I can see the
bug has been there in kernel version 3.2 already, therefore
I can't provide a reference which commit is fixed by it.
The fix may need small adjustments per kernel version because
due to other changes the label which is jumped to if
register_netdev() fails has changed over time.
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/realtek/r8169.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -8446,12 +8446,12 @@ static int rtl_init_one(struct pci_dev *
goto err_out_msi_5;
}
+ pci_set_drvdata(pdev, dev);
+
rc = register_netdev(dev);
if (rc < 0)
goto err_out_cnt_6;
- pci_set_drvdata(pdev, dev);
-
netif_info(tp, probe, dev, "%s at 0x%p, %pM, XID %08x IRQ %d\n",
rtl_chip_infos[chipset].name, ioaddr, dev->dev_addr,
(u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), pdev->irq);
Patches currently in stable-queue which might be from hkallweit1@gmail.com are
queue-4.9/r8169-fix-setting-driver_data-after-register_netdev.patch
queue-4.9/pinctrl-meson-gxbb-remove-non-existing-pin-gpiox_22.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-04-11 9:05 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-04-11 9:03 Patch "r8169: fix setting driver_data after register_netdev" has been added to the 4.9-stable tree gregkh
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.