Messages in this thread Patch in this message | | | Date | Fri, 16 Oct 2009 10:10:35 -0700 | From | Greg KH <> | Subject | [42/46] Staging: rt2860sta: prevent a panic when disabling when associated |
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2.6.31-stable review patch. If anyone has any objections, please let us know.
------------------ From: Darren Salt <linux@youmustbejoking.demon.co.uk>
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 <linux@youmustbejoking.demon.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- 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;
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