net: ethernet: ti: davinci_cpdma: free memory while channel destroy

While create/destroy channel operation memory is not freed. It was
supposed that memory is freed while driver remove. But a channel
can be created and destroyed many times while changing number of
channels with ethtool.

Based on net-next/master

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index c3f35f11a8fd53d59ea1ac0c8d69653ec049c443..8f7b42053bbbe77296f622f84199529ce28861e2 100644 (file)
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -533,7 +533,7 @@ int cpdma_chan_destroy(struct cpdma_chan *chan)
                cpdma_chan_stop(chan);
        ctlr->channels[chan->chan_num] = NULL;
        ctlr->chan_num--;
-
+       devm_kfree(ctlr->dev, chan);
        cpdma_chan_split_pool(ctlr);
 
        spin_unlock_irqrestore(&ctlr->lock, flags);