[PATCH] fsl/fman: add missing put_devcie() call in fman_port_probe()

[Yu Kuai]

if of_find_device_by_node() succeed, fman_port_probe() doesn't have a
corresponding put_device(). Thus add jump target to fix the exception
handling for this function implementation.

Fixes: 0572054617f3 ("fsl/fman: fix dereference null return value")
Signed-off-by: Yu Kuai <yuku...@huawei.com>
---
 drivers/net/ethernet/freescale/fman/fman_port.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c 
b/drivers/net/ethernet/freescale/fman/fman_port.c
index d9baac0dbc7d..576ce6df3fce 100644
--- a/drivers/net/ethernet/freescale/fman/fman_port.c
+++ b/drivers/net/ethernet/freescale/fman/fman_port.c
@@ -1799,13 +1799,13 @@ static int fman_port_probe(struct platform_device 
*of_dev)
        of_node_put(fm_node);
        if (!fm_pdev) {
                err = -EINVAL;
-               goto return_err;
+               goto put_device;
        }
 
        fman = dev_get_drvdata(&fm_pdev->dev);
        if (!fman) {
                err = -EINVAL;
-               goto return_err;
+               goto put_device;
        }
 
        err = of_property_read_u32(port_node, "cell-index", &val);
@@ -1813,7 +1813,7 @@ static int fman_port_probe(struct platform_device *of_dev)
                dev_err(port->dev, "%s: reading cell-index for %pOF failed\n",
                        __func__, port_node);
                err = -EINVAL;
-               goto return_err;
+               goto put_device;
        }
        port_id = (u8)val;
        port->dts_params.id = port_id;
@@ -1847,7 +1847,7 @@ static int fman_port_probe(struct platform_device *of_dev)
        }  else {
                dev_err(port->dev, "%s: Illegal port type\n", __func__);
                err = -EINVAL;
-               goto return_err;
+               goto put_device;
        }
 
        port->dts_params.type = port_type;
@@ -1861,7 +1861,7 @@ static int fman_port_probe(struct platform_device *of_dev)
                        dev_err(port->dev, "%s: incorrect qman-channel-id\n",
                                __func__);
                        err = -EINVAL;
-                       goto return_err;
+                       goto put_device;
                }
                port->dts_params.qman_channel_id = qman_channel_id;
        }
@@ -1871,7 +1871,7 @@ static int fman_port_probe(struct platform_device *of_dev)
                dev_err(port->dev, "%s: of_address_to_resource() failed\n",
                        __func__);
                err = -ENOMEM;
-               goto return_err;
+               goto put_device;
        }
 
        port->dts_params.fman = fman;
@@ -1898,6 +1898,8 @@ static int fman_port_probe(struct platform_device *of_dev)
 
 return_err:
        of_node_put(port_node);
+put_device:
+       put_device(&fm_pdev->dev);
 free_port:
        kfree(port);
        return err;
-- 
2.25.4