Pressing EEEPC 900HD wireless hotkey makes system freeze with black screen.

Is the staging driver update from lkml relevent here:

2.6.31-stable review patch. If anyone has any objections, please let us know.

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From: Darren Salt <email address hidden>

commit 0af49167b1e5ba154e90d2c454bf4624ee47df80 upstream.

This fixes a panic which is triggered when the hardware "disappears" from
beneath the driver, i.e. when wireless is toggled off via Fn-F2 on various
EeePC models.

Ref. bug report http://bugzilla.kernel.org/show_bug.cgi?id=13390
          panic http://bugzilla.kernel.org/attachment.cgi?id=21928

Signed-off-by: Darren Salt <email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>

---
 drivers/staging/rt2860/common/cmm_data_2860.c | 2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/staging/rt2860/common/cmm_data_2860.c
+++ b/drivers/staging/rt2860/common/cmm_data_2860.c
@@ -363,6 +363,8 @@ int RtmpPCIMgmtKickOut(
  ULONG SwIdx = pAd->MgmtRing.TxCpuIdx;

  pTxD = (PTXD_STRUC) pAd->MgmtRing.Cell[SwIdx].AllocVa;
+ if (!pTxD)
+ return 0;

  pAd->MgmtRing.Cell[SwIdx].pNdisPacket = pPacket;
  pAd->MgmtRing.Cell[SwIdx].pNextNdisPacket = NULL;