Re: [PATCH] spi: nxp-fspi: Fix runtime PM leak in nxp_fspi_probe()

[Frank Li <Frank.li@oss.nxp.com>]

On Thu, Sep 17, 2026 at 03:37:13PM +0000, Wentao Liang wrote:
> pm_runtime_get_sync() increments the runtime PM usage counter even when
> it fails.  If it returns an error, nxp_fspi_probe() returns without
> dropping that reference, so the counter stays unbalanced.
>
> Balance the counter with pm_runtime_put_noidle() before returning, as
> nxp_fspi_remove() already does.
>
> Fixes: 97be4b919a60 ("spi: spi-nxp-fspi: enable runtime pm for fspi")
> Cc: stable@vger.kernel.org
> Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
> ---
>  drivers/spi/spi-nxp-fspi.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
> index 1e36ae084dd8..9883e5149dc4 100644
> --- a/drivers/spi/spi-nxp-fspi.c
> +++ b/drivers/spi/spi-nxp-fspi.c
> @@ -1351,8 +1351,10 @@ static int nxp_fspi_probe(struct platform_device *pdev)
>
>  	/* enable clock */
>  	ret = pm_runtime_get_sync(f->dev);
> -	if (ret < 0)
> +	if (ret < 0) {
> +		pm_runtime_put_noidle(f->dev);
>  		return dev_err_probe(dev, ret, "Failed to enable clock");
> +	}


use pm_runtime_resume_and_get()

Frank
>
>  	/* Clear potential interrupts */
>  	reg = fspi_readl(f, f->iobase + FSPI_INTR);
> --
> 2.34.1
>
>