3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: htbegin <hotfor...@gmail.com>
[ Upstream commit ffb5ba90017505a19e238e986e6d33f09e4df765 ]
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 <hotfor...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
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 c97d2f5..bfc3b0d 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -851,6 +851,7 @@ 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 */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
