[PATCH] clk: versaclock: Fix incorrect error check in versaclock_probe()

Sean Anderson sean.anderson at seco.com
Fri Dec 12 19:40:39 CET 2025


On 12/12/25 13:06, Kuan-Wei Chiu wrote:
> The error check during the registration of FODs is incorrect. The code
> currently checks IS_ERR(pll_name) immediately after assigning
> fod_name[n].
>
> Since pll_name is checked in a previous block, this condition will
> always be false, causing any allocation failure in
> versaclock_get_name() for fod_name to be ignored. This could lead
> to usage of an invalid pointer.
>
> Fix the condition to check fod_name[n] instead.
>
> Fixes: dcf2cee77f2d ("clk: clk_versaclock: Add support for versaclock driver")
> Signed-off-by: Kuan-Wei Chiu <visitorckw at gmail.com>
> ---
>  drivers/clk/clk_versaclock.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/clk_versaclock.c b/drivers/clk/clk_versaclock.c
> index 19a787eaf0c..1dbde75f180 100644
> --- a/drivers/clk/clk_versaclock.c
> +++ b/drivers/clk/clk_versaclock.c
> @@ -945,7 +945,7 @@ int versaclock_probe(struct udevice *dev)
>       /* Register FODs */
>       for (n = 0; n < vc5->chip_info->clk_fod_cnt; n++) {
>               fod_name[n] = versaclock_get_name(dev->name, "fod", n);
> -             if (IS_ERR(pll_name)) {
> +             if (IS_ERR(fod_name[n])) {
>                       ret = PTR_ERR(fod_name[n]);
>                       goto free_fod;
>               }

Reviewed-by: Sean Anderson <sean.anderson at seco.com>

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