forked from Minki/linux
0ee1f47349
When unplugging an r8152 adapter while the interface is UP, the NIC becomes unusable. usb->disconnect (aka rtl8152_disconnect) deletes napi. Then, rtl8152_disconnect calls unregister_netdev and that invokes netdev->ndo_stop (aka rtl8152_close). rtl8152_close tries to napi_disable, but the napi is already deleted by disconnect above. So the first while loop in napi_disable never finishes. This results in complete deadlock of the network layer as there is rtnl_mutex held by unregister_netdev. So avoid the call to napi_disable in rtl8152_close when the device is already gone. The other calls to usb_kill_urb, cancel_delayed_work_sync, netif_stop_queue etc. seem to be fine. The urb and netdev is not destroyed yet. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: linux-usb@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| asix_common.c | ||
| asix_devices.c | ||
| asix.h | ||
| ax88172a.c | ||
| ax88179_178a.c | ||
| catc.c | ||
| cdc_eem.c | ||
| cdc_ether.c | ||
| cdc_mbim.c | ||
| cdc_ncm.c | ||
| cdc_subset.c | ||
| cdc-phonet.c | ||
| ch9200.c | ||
| cx82310_eth.c | ||
| dm9601.c | ||
| gl620a.c | ||
| hso.c | ||
| huawei_cdc_ncm.c | ||
| int51x1.c | ||
| ipheth.c | ||
| kalmia.c | ||
| kaweth.c | ||
| Kconfig | ||
| lan78xx.c | ||
| lan78xx.h | ||
| lg-vl600.c | ||
| Makefile | ||
| mcs7830.c | ||
| net1080.c | ||
| pegasus.c | ||
| pegasus.h | ||
| plusb.c | ||
| qmi_wwan.c | ||
| r8152.c | ||
| rndis_host.c | ||
| rtl8150.c | ||
| sierra_net.c | ||
| smsc75xx.c | ||
| smsc75xx.h | ||
| smsc95xx.c | ||
| smsc95xx.h | ||
| sr9700.c | ||
| sr9700.h | ||
| sr9800.c | ||
| sr9800.h | ||
| usbnet.c | ||
| zaurus.c | ||