[PATCH] media: rockchip/rga: do proper error checking in probe

[Kieran Bingham]

Quoting Kyle Copperfield (2021-11-20 12:23:02)
> The latest fix for probe error handling contained a typo that causes
> probing to fail with the following message:
> 
>   rockchip-rga: probe of ff680000.rga failed with error -12
> 
> This patch fixes the typo.
> 
> Fixes: e58430e1d4fd (media: rockchip/rga: fix error handling in probe)
> Reviewed-by: Dragan Simic <dragan.simic at gmail.com>
> Signed-off-by: Kyle Copperfield <kmcopper at danwin1210.me>
> ---
>  drivers/media/platform/rockchip/rga/rga.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
> index 6759091b15e0..d99ea8973b67 100644
> --- a/drivers/media/platform/rockchip/rga/rga.c
> +++ b/drivers/media/platform/rockchip/rga/rga.c
> @@ -895,7 +895,7 @@ static int rga_probe(struct platform_device *pdev)
>         }
>         rga->dst_mmu_pages =
>                 (unsigned int *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 3);
> -       if (rga->dst_mmu_pages) {
> +       if (!rga->dst_mmu_pages) {

Ouch, that indeed looks like it was unhelpful..

Reviewed-by: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>

>                 ret = -ENOMEM;
>                 goto free_src_pages;
>         }
> -- 
> 2.34.0
>