diff options
| author | htbegin <hotforest@gmail.com> | 2012-10-01 16:42:43 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-10-10 03:31:25 +0100 |
| commit | aabc054d7cd5778d021c5b50ee5f4d2406072562 (patch) | |
| tree | d07549cd5d741dcf4598b144bb0927e6e0b82569 | |
| parent | ab98741ba1888af9aeb4a88423bda1e2d93932e5 (diff) | |
net: ethernet: davinci_cpdma: decrease the desc count when cleaning up the remaining packets
[ 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 <hotforest@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index c97d2f590855..bfc3b0d614a7 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 */ |