On Wed, 9 May 2018 17:56:46 +0300
Alexey Khoroshilov <khoroshi...@ispras.ru> wrote:
> nxp_spifi_probe() increments refcnt of SPI flash device node by
> of_get_next_available_child() and leaves it undecremented on both
> successful and error paths.
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Signed-off-by: Alexey Khoroshilov <khoroshi...@ispras.ru>
> ---
> drivers/mtd/spi-nor/nxp-spifi.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/nxp-spifi.c b/drivers/mtd/spi-nor/nxp-spifi.c
> index 15374216d4d9..7b047951d0a2 100644
> --- a/drivers/mtd/spi-nor/nxp-spifi.c
> +++ b/drivers/mtd/spi-nor/nxp-spifi.c
> @@ -438,11 +438,15 @@ static int nxp_spifi_probe(struct platform_device *pdev)
> ret = nxp_spifi_setup_flash(spifi, flash_np);
Just put the of_node_put() here and that's the only change you'll need.
> if (ret) {
> dev_err(&pdev->dev, "unable to setup flash chip\n");
> - goto dis_clks;
> + goto put_np;
> }
>
> + of_node_put(flash_np);
> +
> return 0;
>
> +put_np:
> + of_node_put(flash_np);
> dis_clks:
> clk_disable_unprepare(spifi->clk_spifi);
> dis_clk_reg:
