[PATCH net-next 3/6] net: hdlc_x25: move out assignment in if condition

From: Guangbin Huang
Date: Fri Jun 04 2021 - 03:35:33 EST


From: Peng Li <lipeng321@xxxxxxxxxx>

Should not use assignment in if condition.

Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
Signed-off-by: Guangbin Huang <huangguangbin2@xxxxxxxxxx>
---
drivers/net/wan/hdlc_x25.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wan/hdlc_x25.c b/drivers/net/wan/hdlc_x25.c
index 525eb42..24fdb6c 100644
--- a/drivers/net/wan/hdlc_x25.c
+++ b/drivers/net/wan/hdlc_x25.c
@@ -137,13 +137,15 @@ static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
switch (skb->data[0]) {
case X25_IFACE_DATA: /* Data to be transmitted */
skb_pull(skb, 1);
- if ((result = lapb_data_request(dev, skb)) != LAPB_OK)
+ result = lapb_data_request(dev, skb);
+ if (result != LAPB_OK)
dev_kfree_skb(skb);
spin_unlock_bh(&x25st->up_lock);
return NETDEV_TX_OK;

case X25_IFACE_CONNECT:
- if ((result = lapb_connect_request(dev))!= LAPB_OK) {
+ result = lapb_connect_request(dev);
+ if (result != LAPB_OK) {
if (result == LAPB_CONNECTED)
/* Send connect confirm. msg to level 3 */
x25_connected(dev, 0);
@@ -154,7 +156,8 @@ static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
break;

case X25_IFACE_DISCONNECT:
- if ((result = lapb_disconnect_request(dev)) != LAPB_OK) {
+ result = lapb_disconnect_request(dev);
+ if (result != LAPB_OK) {
if (result == LAPB_NOTCONNECTED)
/* Send disconnect confirm. msg to level 3 */
x25_disconnected(dev, 0);
@@ -237,7 +240,8 @@ static int x25_rx(struct sk_buff *skb)
hdlc_device *hdlc = dev_to_hdlc(dev);
struct x25_state *x25st = state(hdlc);

- if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb) {
dev->stats.rx_dropped++;
return NET_RX_DROP;
}
@@ -333,8 +337,9 @@ static int x25_ioctl(struct net_device *dev, struct ifreq *ifr)
if (result)
return result;

- if ((result = attach_hdlc_protocol(dev, &proto,
- sizeof(struct x25_state))))
+ result = attach_hdlc_protocol(dev, &proto,
+ sizeof(struct x25_state));
+ if (result)
return result;

memcpy(&state(hdlc)->settings, &new_settings, size);
--
2.8.1