This is a note to let you know that I've just added the patch titled
net: allwinner: emac: Add missing free_irq
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-allwinner-emac-add-missing-free_irq.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b91113282bf44df46aba374a0b8f88a75bfd4b3f Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Jun 2014 22:49:40 +0200
Subject: net: allwinner: emac: Add missing free_irq
From: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
commit b91113282bf44df46aba374a0b8f88a75bfd4b3f upstream.
If the mdio probe function fails in emac_open, the interrupt we just requested
isn't freed. If emac_open is called again, for example because we try to set up
the interface again, the kernel will oops because the interrupt wasn't properly
released.
Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/allwinner/sun4i-emac.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -725,6 +725,7 @@ static int emac_open(struct net_device *
ret = emac_mdio_probe(dev);
if (ret < 0) {
+ free_irq(dev->irq, dev);
netdev_err(dev, "cannot probe MDIO bus\n");
return ret;
}
Patches currently in stable-queue which might be from maxime.ripard@xxxxxxxxxxxxxxxxxx are
queue-3.14/net-allwinner-emac-add-missing-free_irq.patch
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