diff options
Diffstat (limited to 'drivers/net/mctp/mctp-i2c.c')
| -rw-r--r-- | drivers/net/mctp/mctp-i2c.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/mctp/mctp-i2c.c b/drivers/net/mctp/mctp-i2c.c index e3dcdeacc12c..d74d47dd6e04 100644 --- a/drivers/net/mctp/mctp-i2c.c +++ b/drivers/net/mctp/mctp-i2c.c @@ -583,6 +583,7 @@ static int mctp_i2c_header_create(struct sk_buff *skb, struct net_device *dev, struct mctp_i2c_hdr *hdr; struct mctp_hdr *mhdr; u8 lldst, llsrc; + int rc; if (len > MCTP_I2C_MAXMTU) return -EMSGSIZE; @@ -593,6 +594,10 @@ static int mctp_i2c_header_create(struct sk_buff *skb, struct net_device *dev, lldst = *((u8 *)daddr); llsrc = *((u8 *)saddr); + rc = skb_cow_head(skb, sizeof(struct mctp_i2c_hdr)); + if (rc) + return rc; + skb_push(skb, sizeof(struct mctp_i2c_hdr)); skb_reset_mac_header(skb); hdr = (void *)skb_mac_header(skb); |