Re: [PATCH 02/10] net: ax88796: Attach MII bus only when open

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On Tue, Apr 17, 2018 at 10:04:37AM +1200, Michael Schmitz wrote:
From: Michael Karcher <debian@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>

Call ax_mii_init in ax_open(), and unregister/remove mdiobus resources
in ax_close().

This is needed to be able to unload the module, as the module is busy
while the MII bus is attached.

Signed-off-by: Michael Karcher <kernel@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
---
 drivers/net/ethernet/8390/ax88796.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index 2a256aa..f7b8911 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -79,6 +79,8 @@
 
 static u32 ax_msg_enable;
 
+static int ax_mii_init(struct net_device *dev);

Hi Michael

We try to avoid forward declarations. Please can you move
ax_mii_init() so this is not needed.

+
 /* device private data */
 
 struct ax_device {
@@ -396,6 +398,10 @@ static int ax_open(struct net_device *dev)
 
 	netdev_dbg(dev, "open\n");
 
+	ret = ax_mii_init(dev);
+	if (ret)
+		goto failed_request_irq;
+
 	ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags,
 			  dev->name, dev);
 	if (ret)

You are missing some cleanup on error at the end of ax_open().
It was also missing before.

   Andrew
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