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| author | htbegin <hotforest@gmail.com> | 2012-10-01 16:42:43 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-13 05:28:05 +0900 |
| commit | 46462f22698f72a9085cc6bb20737a8d79ef23ca (patch) | |
| tree | a0db33b700ffe91ee4fabb86f67c4a6e3e440563 /drivers/net/davinci_cpdma.c | |
| parent | 3d39c3b09b4ef1fd7febdcf88f6bb9437cf4c141 (diff) | |
| download | kernel_samsung_smdk4412-46462f22698f72a9085cc6bb20737a8d79ef23ca.zip kernel_samsung_smdk4412-46462f22698f72a9085cc6bb20737a8d79ef23ca.tar.gz kernel_samsung_smdk4412-46462f22698f72a9085cc6bb20737a8d79ef23ca.tar.bz2 | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/davinci_cpdma.c')
| -rw-r--r-- | drivers/net/davinci_cpdma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/davinci_cpdma.c b/drivers/net/davinci_cpdma.c index ae47f23..6b67c52 100644 --- a/drivers/net/davinci_cpdma.c +++ b/drivers/net/davinci_cpdma.c @@ -849,6 +849,7 @@ 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 */ |