diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-03-21 12:02:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-21 11:30:01 -0400 |
| commit | 227f33beab746aeec4ef3305bd17b1d374df09e7 (patch) | |
| tree | 41f1b2a258a2b98ff9ad5f34ba5dca9e28867cbd /drivers/net/phy/mdio-sun4i.c | |
| parent | abc34d753ee013a62595c2f7e9260e173dd083c6 (diff) | |
mdio-sun4i: oops in error handling in probe
We could end up dereferencing an error pointer when we call
regulator_disable().
Fixes: 4bdcb1dd9feb ('net: Add MDIO bus driver for the Allwinner EMAC')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/mdio-sun4i.c')
| -rw-r--r-- | drivers/net/phy/mdio-sun4i.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/phy/mdio-sun4i.c b/drivers/net/phy/mdio-sun4i.c index f70522c35163..135296508a7e 100644 --- a/drivers/net/phy/mdio-sun4i.c +++ b/drivers/net/phy/mdio-sun4i.c @@ -122,6 +122,7 @@ static int sun4i_mdio_probe(struct platform_device *pdev) return -EPROBE_DEFER; dev_info(&pdev->dev, "no regulator found\n"); + data->regulator = NULL; } else { ret = regulator_enable(data->regulator); if (ret) @@ -137,7 +138,8 @@ static int sun4i_mdio_probe(struct platform_device *pdev) return 0; err_out_disable_regulator: - regulator_disable(data->regulator); + if (data->regulator) + regulator_disable(data->regulator); err_out_free_mdiobus: mdiobus_free(bus); return ret; |