4.4-stable review patch. If anyone has any objections, please let me know.
--
From: Julian Wiedmann
[ Upstream commit a702349a4099cd5a7bab0904689d8e0bf8dcd622 ]
By updating q->used_buffers only _after_ do_QDIO() has completed, there
is a potential race against the buffer's TX
4.4-stable review patch. If anyone has any objections, please let me know.
--
From: Julian Wiedmann
[ Upstream commit a702349a4099cd5a7bab0904689d8e0bf8dcd622 ]
By updating q->used_buffers only _after_ do_QDIO() has completed, there
is a potential race against the buffer's TX
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