On 08.10.2024 18:44, Dave Stevenson wrote:
> Commit 52efe364d196 ("drm/vc4: hvs: Don't write gamma luts on 2711")
> added a return path to vc4_hvs_lut_load that had called
> drm_dev_enter, but not drm_dev_exit.
>
> Ensure we call drm_dev_exit.
>
> Fixes: 52efe364d196 ("drm/vc4: hvs: Don't write gamma luts on 2711")
> Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Closes: https://lore.kernel.org/dri-devel/37051126-3921-4afe-a936-5f828bff5752@xxxxxxxxxxx/
> Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
> index 2a366a607fcc..546ee11016b2 100644
> --- a/drivers/gpu/drm/vc4/vc4_hvs.c
> +++ b/drivers/gpu/drm/vc4/vc4_hvs.c
> @@ -225,7 +225,7 @@ static void vc4_hvs_lut_load(struct vc4_hvs *hvs,
> return;
>
> if (hvs->vc4->gen == VC4_GEN_4)
> - return;
> + goto exit;
>
> /* The LUT memory is laid out with each HVS channel in order,
> * each of which takes 256 writes for R, 256 for G, then 256
> @@ -242,6 +242,7 @@ static void vc4_hvs_lut_load(struct vc4_hvs *hvs,
> for (i = 0; i < crtc->gamma_size; i++)
> HVS_WRITE(SCALER_GAMDATA, vc4_crtc->lut_b[i]);
>
> +exit:
> drm_dev_exit(idx);
> }
>
>
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
