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mirror of https://git.FreeBSD.org/src.git synced 2024-12-26 11:47:31 +00:00
freebsd/sys/dev/if_ndis
Bill Paul 55ad415824 When ndis_attach() runs, it has to very briefly initialize the card
in order to query the underlying Windows driver for the station address
and some other properties. There is a slim chance that the card may
receive a packet and indicate it up to us before ndis_attach() can call
ndis_halt_nic(). This is bad, because both the softc structure and
the ifnet structure aren't fully initialized yet: many pointers are
still NULL, so if we make it into ndis_rxeof(), we will panic.

To fix this, we need to do the following:

- Move the calls to IoAllocateWorkItem() to before the call to ndis_init_nic().
- Move the initialization of the RX DPC and status callback function pointers
  to before ndis_init_nic() as well.
- Modify ndis_rxeof() to check if the IFF_DRV_RUNNING flag is set. If it
  isn't, we return any supplied NDIS_PACKETs to the NIC without processing
  them.

This fixes a crash than can occur when activating a wireless NIC in
close proximity to a very busy wireless network, reported by Ryan
Beasley (ryan%^$!ATgoddamnbastard-****!!!DOTorg.

MFC after:	3 days
2006-02-04 19:42:49 +00:00
..
if_ndis_pccard.c More fixes for multibus drivers. When calling out to the match 2005-05-08 23:19:20 +00:00
if_ndis_pci.c More fixes for multibus drivers. When calling out to the match 2005-05-08 23:19:20 +00:00
if_ndis_usb.c Throw the switch on the new driver generation/loading mechanism. From 2005-04-24 20:21:22 +00:00
if_ndis.c When ndis_attach() runs, it has to very briefly initialize the card 2006-02-04 19:42:49 +00:00
if_ndisvar.h Correct some __FreeBSD_version conditionals to use version bumps closer 2005-10-25 16:14:34 +00:00