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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-06-23 22:49:40 +0200
committerDavid S. Miller <davem@davemloft.net>2014-06-26 01:31:17 +0200
commitb91113282bf44df46aba374a0b8f88a75bfd4b3f (patch)
treed1d94b894b448033edbc7539e488d87b445127f1
parentcxgb4: use dev_port to identify ports (diff)
downloadlinux-b91113282bf44df46aba374a0b8f88a75bfd4b3f.tar.xz
linux-b91113282bf44df46aba374a0b8f88a75bfd4b3f.zip
net: allwinner: emac: Add missing free_irq
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@free-electrons.com> Cc: <stable@vger.kernel.org> # 3.11+ Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/allwinner/sun4i-emac.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index 28460676b8ca..d81e7167a8b5 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -736,6 +736,7 @@ static int emac_open(struct net_device *dev)
ret = emac_mdio_probe(dev);
if (ret < 0) {
+ free_irq(dev->irq, dev);
netdev_err(dev, "cannot probe MDIO bus\n");
return ret;
}