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Date: Thu, 11 Oct 2012 09:59:45 +0900 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, alan@...rguk.ukuu.org.uk, Tao Hou <hotforest@...il.com>, "David S. Miller" <davem@...emloft.net> Subject: [ 033/120] net: ethernet: davinci_cpdma: decrease the desc count when cleaning up the remaining packets 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: htbegin <hotforest@...il.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 <hotforest@...il.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/ethernet/ti/davinci_cpdma.c | 1 + 1 file changed, 1 insertion(+) --- 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 *c 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 majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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