Commit ffb5ba90 authored Oct 01, 2012 by htbegin Committed by David S. Miller Oct 02, 2012

net: ethernet: davinci_cpdma: decrease the desc count when cleaning up the remaining packets



chan->count is used by rx channel. If the desc count is not updated by
the clean up loop in cpdma_chan_stop, the value written to the rxfree
register in cpdma_chan_start will be incorrect.

Signed-off-by: Tao Hou <hotforest@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent da158646

drivers/net/ethernet/ti/davinci_cpdma.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -863,6 +863,7 @@ int cpdma_chan_stop(struct cpdma_chan *chan)

		next_dma = desc_read(desc, hw_next);
		chan->head = desc_from_phys(pool, next_dma);
		chan->count--;
		chan->stats.teardown_dequeue++;

		/* issue callback without locks held */