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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-03 14:56:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-03 10:09:39 +0300
commit0b950a05a71a9a64658dc3bba0bb6cae21c912f4 (patch)
tree85563418b377961e08b261725acb98b756af3eaa /drivers
parent0609385768016447d319f2937c09251ea5793fe7 (diff)
downloadlinux-0b950a05a71a9a64658dc3bba0bb6cae21c912f4.tar.xz
Revert "net: caif: replace BUG_ON with recovery code"
[ Upstream commit 4df07045fcfd684379a394d0f2aa0cc4067bda2a ] This reverts commit c5dea815834c7d2e9fc633785455bc428b7a1956. Because of recent interactions with developers from @umn.edu, all commits from them have been recently re-reviewed to ensure if they were correct or not. Upon review, this commit was found to be incorrect for the reasons below, so it must be reverted. It will be fixed up "correctly" in a later kernel change. The original change here was pointless as dev can never be NULL in this function so the claim in the changelog that this "fixes" anything is incorrect (also the developer forgot about panic_on_warn). A follow-up change will resolve this issue properly. Cc: Aditya Pakki <pakki001@umn.edu> Cc: David S. Miller <davem@davemloft.net> Link: https://lore.kernel.org/r/20210503115736.2104747-19-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/caif/caif_serial.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 8215cd77301f..4720a7bac4fb 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -269,9 +269,7 @@ static netdev_tx_t caif_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ser_device *ser;
- if (WARN_ON(!dev))
- return -EINVAL;
-
+ BUG_ON(dev == NULL);
ser = netdev_priv(dev);
/* Send flow off once, on high water mark */