linux-kernel - [PATCH] net: ethernet: ti: davinci_cpdma: free memory while channel destroy

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Message-Id: <1478610965-25288-1-git-send-email-ivan.khoronzhuk@linaro.org>
Date:   Tue,  8 Nov 2016 15:16:05 +0200
From:   Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
To:     mugunthanvnm@...com, grygorii.strashko@...com,
        netdev@...r.kernel.org
Cc:     linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
Subject: [PATCH] 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@...aro.org>
---
 drivers/net/ethernet/ti/davinci_cpdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 05afc05..07fc92d 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -586,7 +586,7 @@ 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);
-- 
1.9.1