On Fri, Sep 21, 2018 at 3:00 AM Nathan Chancellor
<natechancellor@xxxxxxxxx> wrote:
>
> Clang warns that the address of a pointer will always evaluated as true
> in a boolean context.
>
> drivers/media/platform/pxa_camera.c:2400:17: warning: address of
> 'pdev->dev.of_node' will always evaluate to 'true'
> [-Wpointer-bool-conversion]
> if (&pdev->dev.of_node && !pcdev->pdata) {
> ~~~~~~~~~~^~~~~~~ ~~
> 1 warning generated.
>
> Judging from the rest of the kernel, it seems like this was an error and
> just the value of of_node should be checked rather than the address.
>
> Reported-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> ---
> drivers/media/platform/pxa_camera.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
> index 3288d22de2a0..6717834e8041 100644
> --- a/drivers/media/platform/pxa_camera.c
> +++ b/drivers/media/platform/pxa_camera.c
> @@ -2397,7 +2397,7 @@ static int pxa_camera_probe(struct platform_device *pdev)
> pcdev->res = res;
>
> pcdev->pdata = pdev->dev.platform_data;
> - if (&pdev->dev.of_node && !pcdev->pdata) {
> + if (pdev->dev.of_node && !pcdev->pdata) {
pdev->dev.of_node is a `struct device_node *`, so this is the correct
way to check that it's not NULL. It's use in
pxa_camera_pdata_from_dt() is necessitated on the caller checking that
it's not NULL.
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> err = pxa_camera_pdata_from_dt(&pdev->dev, pcdev, &pcdev->asd);
> } else {
> pcdev->platform_flags = pcdev->pdata->flags;
> --
> 2.19.0
>
--
Thanks,
~Nick Desaulniers
