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staging: gdm724x: fix return codes in gdm_lte 

fix return codes in gdm_lte in gdm724x driver

Signed-off-by: Andrii Vladyka <tulup@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrii Vladyka 2017-10-18 16:23:45 +03:00 committed by Greg Kroah-Hartman
parent d67dc3a402
commit b2b41718b6
1 changed files with 7 additions and 7 deletions
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14
drivers/staging/gdm724x/gdm_lte.c
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@ -246,13 +246,13 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
if (ntohs(((struct ethhdr *)skb_in->data)->h_proto) == ETH_P_8021Q) {
memcpy(&vlan_eth, skb_in->data, sizeof(struct vlan_ethhdr));
if (ntohs(vlan_eth.h_vlan_encapsulated_proto) != ETH_P_IPV6)
return -1;
return -EPROTONOSUPPORT;
mac_header_data = &vlan_eth;
mac_header_len = VLAN_ETH_HLEN;
} else {
memcpy(&eth, skb_in->data, sizeof(struct ethhdr));
if (ntohs(eth.h_proto) != ETH_P_IPV6)
return -1;
return -EPROTONOSUPPORT;
mac_header_data = &eth;
mac_header_len = ETH_HLEN;
}
@ -260,13 +260,13 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
/* Check if this is IPv6 ICMP packet */
ipv6_in = (struct ipv6hdr *)(skb_in->data + mac_header_len);
if (ipv6_in->version != 6 || ipv6_in->nexthdr != IPPROTO_ICMPV6)
return -1;
return -EPROTONOSUPPORT;
/* Check if this is NDP packet */
icmp6_in = (struct icmp6hdr *)(skb_in->data + mac_header_len +
sizeof(struct ipv6hdr));
if (icmp6_in->icmp6_type == NDISC_ROUTER_SOLICITATION) { /* Check RS */
return -1;
return -EPROTONOSUPPORT;
} else if (icmp6_in->icmp6_type == NDISC_NEIGHBOUR_SOLICITATION) {
/* Check NS */
u8 icmp_na[sizeof(struct icmp6hdr) +
@ -310,7 +310,7 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
icmp6_out.icmp6_cksum = icmp6_checksum(&ipv6_out,
(u16 *)icmp_na, sizeof(icmp_na));
} else {
return -1;
return -EINVAL;
}
/* Fill the destination mac with source mac of the received packet */
@ -417,7 +417,7 @@ static int gdm_lte_tx(struct sk_buff *skb, struct net_device *dev)
nic_type = gdm_lte_tx_nic_type(dev, skb);
if (nic_type == 0) {
netdev_err(dev, "tx - invalid nic_type\n");
return -1;
return -EMEDIUMTYPE;
}
if (nic_type & NIC_TYPE_ARP) {
@ -544,7 +544,7 @@ int gdm_lte_event_init(void)
}
pr_err("event init failed\n");
return -1;
return -ENODATA;
}
void gdm_lte_event_exit(void)