On Sun, Jun 29, 2025 at 04:38:36AM +0200, Loic Poulain wrote:
> DRM checks EDID block count against allocated size in drm_edid_valid
> function. We have to allocate the right EDID size instead of the max
> size to prevent the EDID to be reported as invalid.
>
> Fixes: 7c585f9a71aa ("drm/bridge: anx7625: use struct drm_edid more")
Cc: [email protected]
Reviewed-by: Dmitry Baryshkov <[email protected]>
> Signed-off-by: Loic Poulain <[email protected]>
> ---
> drivers/gpu/drm/bridge/analogix/anx7625.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c
> b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index 8a9079c2ed5c..5a81d1bfc815 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -1801,7 +1801,7 @@ static const struct drm_edid *anx7625_edid_read(struct
> anx7625_data *ctx)
> return NULL;
> }
>
> - ctx->cached_drm_edid = drm_edid_alloc(edid_buf, FOUR_BLOCK_SIZE);
> + ctx->cached_drm_edid = drm_edid_alloc(edid_buf, edid_num *
> ONE_BLOCK_SIZE);
> kfree(edid_buf);
>
> out:
> --
> 2.34.1
>
--
With best wishes
Dmitry
