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net: wwan: iosm: fix memory leak in ipc_wwan_dellink

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[ Upstream commit f25caaca424703d5a0607310f0452f978f1f78d9 ]

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@mediatek.com>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Zhaoping Shu <zhaoping.shu@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
HW He 2022-11-03 18:40:00 +08:00 committed by Greg Kroah-Hartman
parent 7b6bc50f65
commit 2ce2348c28
1 changed files with 1 additions and 0 deletions
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drivers/net/wwan/iosm/iosm_ipc_wwan.c
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@ -167,6 +167,7 @@ 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;
}