Re: [PATCH v3] sparc: fix resource leak in jbusmc_probe()

From: Krzysztof Kozlowski
Date: Tue Jul 22 2025 - 02:22:24 EST


On 21/07/2025 09:55, jackysliu wrote:
> From: Siyang Liu <1972843537@xxxxxx>
>
> In the jbusmc_probe function, the device node mem_node fetched
> via of_find_node_by_path("/memory") is not properly freed
> on all code paths.
> This can lead to leakage of device node reference counts,
> which may result in kernel resources not being released.
>
> This issue was detected by rule based static tools
> developed by Tencent.
>
> Fixes: e70140ba0d2b ("Get rid of 'remove_new' relic from platform driver struct")
>
> Signed-off-by: Siyang Liu <1972843537@xxxxxx>
> ---
> arch/sparc/kernel/chmc.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c
> index d4c74d6b2e1b..fd20e4ee0971 100644
> --- a/arch/sparc/kernel/chmc.c
> +++ b/arch/sparc/kernel/chmc.c
> @@ -412,7 +412,7 @@ static int jbusmc_probe(struct platform_device *op)
> mem_regs = of_get_property(mem_node, "reg", &len);
> if (!mem_regs) {
> printk(KERN_ERR PFX "Cannot get reg property of /memory node.\n");
> - goto out;
> + goto out_put;

Nothing improved. You just ignored all the comments.

Best regards,
Krzysztof