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

[Tao Hou]

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@xxxxxxxxx>
---
 drivers/net/ethernet/ti/davinci_cpdma.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index d15c888..4995673 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -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 */
-- 
1.7.9.5

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