Messages in this thread Patch in this message |  | | From | Aditya Pakki <> | Subject | [PATCH] net: caif: replace BUG_ON with recovery code | Date | Sun, 15 Dec 2019 11:51:30 -0600 |
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In caif_xmit, there is a crash if the ptr dev is NULL. However, by returning the error to the callers, the error can be handled. The patch fixes this issue.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> --- drivers/net/caif/caif_serial.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c index bd40b114d6cd..d737ceb61203 100644 --- a/drivers/net/caif/caif_serial.c +++ b/drivers/net/caif/caif_serial.c @@ -270,7 +270,9 @@ static int caif_xmit(struct sk_buff *skb, struct net_device *dev) { struct ser_device *ser; - BUG_ON(dev == NULL); + if (WARN_ON(!dev)) + return -EINVAL; + ser = netdev_priv(dev); /* Send flow off once, on high water mark */ -- 2.20.1
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