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linux-can-fixes-for-5.9-20201008

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Merge tag 'linux-can-fixes-for-5.9-20201008' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

====================
linux-can-fixes-for-5.9-20201008

The first patch is by Lucas Stach and fixes m_can driver by removing an
erroneous call to m_can_class_suspend() in runtime suspend. Which causes the
pinctrl state to get stuck on the "sleep" state, which breaks all CAN
functionality on SoCs where this state is defined.

The last two patches target the j1939 protocol: Cong Wang fixes a syzbot
finding of an uninitialized variable in the j1939 transport protocol. I
contribute a patch, that fixes the initialization of a same uninitialized
variable in a different function.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2020-10-10 10:21:04 -07:00
commit b54fa649d7
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/can/m_can/m_can_platform.c
View File

@ -144,8 +144,6 @@ static int __maybe_unused m_can_runtime_suspend(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct m_can_classdev *mcan_class = netdev_priv(ndev);
m_can_class_suspend(dev);
clk_disable_unprepare(mcan_class->cclk);
clk_disable_unprepare(mcan_class->hclk);

2
net/can/j1939/transport.c
View File

@ -580,6 +580,7 @@ sk_buff *j1939_tp_tx_dat_new(struct j1939_priv *priv,
skb->dev = priv->ndev;
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = priv->ndev->ifindex;
can_skb_prv(skb)->skbcnt = 0;
/* reserve CAN header */
skb_reserve(skb, offsetof(struct can_frame, data));
@ -1487,6 +1488,7 @@ j1939_session *j1939_session_fresh_new(struct j1939_priv *priv,
skb->dev = priv->ndev;
can_skb_reserve(skb);
can_skb_prv(skb)->ifindex = priv->ndev->ifindex;
can_skb_prv(skb)->skbcnt = 0;
skcb = j1939_skb_to_cb(skb);
memcpy(skcb, rel_skcb, sizeof(*skcb));