2021-12-30 12:26:37

by Miaoqian Lin

Subject: [PATCH] fsl/fman: Fix missing put_device() call in fman_port_probe

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the and error handling paths.

Fixes: 18a6c85fcc78 ("fsl/fman: Add FMan Port Support")
Signed-off-by: Miaoqian Lin <[email protected]>
---
drivers/net/ethernet/freescale/fman/fman_port.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c
index d9baac0dbc7d..4c9d05c45c03 100644
--- a/drivers/net/ethernet/freescale/fman/fman_port.c
+++ b/drivers/net/ethernet/freescale/fman/fman_port.c
@@ -1805,7 +1805,7 @@ static int fman_port_probe(struct platform_device *of_dev)
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;
@@ -1896,6 +1896,8 @@ static int fman_port_probe(struct platform_device *of_dev)

return 0;

+put_device:
+ put_device(&fm_pdev->dev);
return_err:
of_node_put(port_node);
free_port:
--
2.17.1

2021-12-30 13:40:18

by patchwork-bot+netdevbpf

Subject: Re: [PATCH] fsl/fman: Fix missing put_device() call in fman_port_probe

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <[email protected]>:

On Thu, 30 Dec 2021 12:26:27 +0000 you wrote:
> The reference taken by 'of_find_device_by_node()' must be released when
> not needed anymore.
> Add the corresponding 'put_device()' in the and error handling paths.
>
> Fixes: 18a6c85fcc78 ("fsl/fman: Add FMan Port Support")
> Signed-off-by: Miaoqian Lin <[email protected]>
>
> [...]

Here is the summary with links:
- fsl/fman: Fix missing put_device() call in fman_port_probe
https://git.kernel.org/netdev/net/c/bf2b09fedc17

You are awesome, thank you!
--
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