[PATCH RESEND] net: wwan: iosm: fix memory leak in ipc_wwan_dellink

[zhaoping.shu]

From: HW He <hw.he@xxxxxxxxxxxx>

IOSM driver registers network device without setting the
needs_free_netdev flag, and does NOT call free_netdev() when
unregisters network device, which causes a memory leak.

This patch sets needs_free_netdev to true when registers
network device, which makes netdev subsystem call free_netdev()
automatically after unregister_netdevice().

Fixes: 2a54f2c77934 ("net: iosm: net driver")
Signed-off-by: HW He <hw.he@xxxxxxxxxxxx>
Reviewed-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
Signed-off-by: Zhaoping Shu <zhaoping.shu@xxxxxxxxxxxx>
---
 drivers/net/wwan/iosm/iosm_ipc_wwan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wwan/iosm/iosm_ipc_wwan.c b/drivers/net/wwan/iosm/iosm_ipc_wwan.c
index 2f1f8b5d5b59..0108d8d01ff2 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_wwan.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_wwan.c
@@ -168,6 +168,7 @@ static void ipc_wwan_setup(struct net_device *iosm_dev)
 	iosm_dev->max_mtu = ETH_MAX_MTU;
 
 	iosm_dev->flags = IFF_POINTOPOINT | IFF_NOARP;
+	iosm_dev->needs_free_netdev = true;
 
 	iosm_dev->netdev_ops = &ipc_inm_ops;
 }
-- 
2.17.0