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authorMugunthan V N <mugunthanvnm@ti.com>2014-10-13 22:21:07 +0530
committerDavid S. Miller <davem@davemloft.net>2014-10-14 15:59:38 -0400
commit030b16a0e37ff2a870dd57c5da89c1741c683684 (patch)
treec29969d26c1d0abd921d10f728f49554ba9714c8 /drivers
parentdrivers: net: davinci_cpdma: remove spinlock as SOFTIRQ-unsafe lock order detected (diff)
downloadlinux-dev-030b16a0e37ff2a870dd57c5da89c1741c683684.tar.xz
linux-dev-030b16a0e37ff2a870dd57c5da89c1741c683684.zip
drivers: net: cpsw: remove child devices while driver detach
remove all the child devices from the system to make sure that re-insert of cpsw module doesn't fail on child device populated by of_platform_populate(). Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/ti/cpsw.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index ab167dc49ce4..952e1e4764b7 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2392,6 +2392,15 @@ clean_ndev_ret:
return ret;
}
+static int cpsw_remove_child_device(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ of_device_unregister(pdev);
+
+ return 0;
+}
+
static int cpsw_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
@@ -2406,6 +2415,7 @@ static int cpsw_remove(struct platform_device *pdev)
cpdma_chan_destroy(priv->rxch);
cpdma_ctlr_destroy(priv->dma);
pm_runtime_disable(&pdev->dev);
+ device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device);
if (priv->data.dual_emac)
free_netdev(cpsw_get_slave_ndev(priv, 1));
free_netdev(ndev);