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path: root/drivers/net/mctp/mctp-i2c.c
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Diffstat (limited to 'drivers/net/mctp/mctp-i2c.c')
-rw-r--r--drivers/net/mctp/mctp-i2c.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/mctp/mctp-i2c.c b/drivers/net/mctp/mctp-i2c.c
index d2b3f5a59141..f782d93f826e 100644
--- a/drivers/net/mctp/mctp-i2c.c
+++ b/drivers/net/mctp/mctp-i2c.c
@@ -177,8 +177,7 @@ static struct mctp_i2c_client *mctp_i2c_new_client(struct i2c_client *client)
return mcli;
err:
if (mcli) {
- if (mcli->client)
- i2c_unregister_device(mcli->client);
+ i2c_unregister_device(mcli->client);
kfree(mcli);
}
return ERR_PTR(rc);
@@ -538,7 +537,7 @@ static void mctp_i2c_xmit(struct mctp_i2c_dev *midev, struct sk_buff *skb)
rc = __i2c_transfer(midev->adapter, &msg, 1);
/* on tx errors, the flow can no longer be considered valid */
- if (rc)
+ if (rc < 0)
mctp_i2c_invalidate_tx_flow(midev, skb);
break;
@@ -584,6 +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;
@@ -594,6 +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);