Re: [PATCH] crypto: hisilicon/qm - Fix device reference leak in qm_get_qos_value

[Herbert Xu]

On Mon, Oct 27, 2025 at 11:09:34PM +0800, Miaoqian Lin wrote:
> The qm_get_qos_value() function calls bus_find_device_by_name() which
> increases the device reference count, but fails to call put_device()
> to balance the reference count and lead to a device reference leak.
> 
> Add put_device() calls in both the error path and success path to
> properly balance the reference count.
> 
> Found via static analysis.
> 
> Fixes: 22d7a6c39cab ("crypto: hisilicon/qm - add pci bdf number check")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
> ---
>  drivers/crypto/hisilicon/qm.c | 2 ++
>  1 file changed, 2 insertions(+)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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