On Thu, Dec 15, 2016 at 05:30:44PM -0500, Geoff Lansberry wrote:

From: Jaret Cantu <redacted>

Repeated polling attempts cause a NULL dereference error to occur.
This is because the curent state of the trf7970a is reading but
a request has been made to send a command.

The solution is to properly kill the waiting reading (workqueue)
before failing on the send.

Maybe its just me but I find this description a little hard to grok.
Mind reworking it?

The patch itself looks fine.

Thanks,

Mark
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