On Tue, 20 Aug 2019 04:16:32 +0300
Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> The hdmi_avi_infoframe_init() never needs to return an error, change its
> return type to void.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Reviewed-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
> ---
> Changes since v1:
>
> - Removed documentation of the return value
>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_edid.c | 5 +----
> drivers/video/hdmi.c | 11 ++---------
> include/linux/hdmi.h | 2 +-
> 3 files changed, 4 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 82a4ceed3fcf..86ddb67c1e8a 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -5083,14 +5083,11 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
> const struct drm_display_mode *mode)
> {
> enum hdmi_picture_aspect picture_aspect;
> - int err;
>
> if (!frame || !mode)
> return -EINVAL;
>
> - err = hdmi_avi_infoframe_init(frame);
> - if (err < 0)
> - return err;
> + hdmi_avi_infoframe_init(frame);
>
> if (mode->flags & DRM_MODE_FLAG_DBLCLK)
> frame->pixel_repeat = 1;
> diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c
> index b939bc28d886..ff4d09592602 100644
> --- a/drivers/video/hdmi.c
> +++ b/drivers/video/hdmi.c
> @@ -53,18 +53,14 @@ static void hdmi_infoframe_set_checksum(void *buffer, size_t size)
> /**
> * hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe
> * @frame: HDMI AVI infoframe
> - *
> - * Returns 0 on success or a negative error code on failure.
> */
> -int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
> +void hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
> {
> memset(frame, 0, sizeof(*frame));
>
> frame->type = HDMI_INFOFRAME_TYPE_AVI;
> frame->version = 2;
> frame->length = HDMI_AVI_INFOFRAME_SIZE;
> -
> - return 0;
> }
> EXPORT_SYMBOL(hdmi_avi_infoframe_init);
>
> @@ -1553,7 +1549,6 @@ static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame,
> const void *buffer, size_t size)
> {
> const u8 *ptr = buffer;
> - int ret;
>
> if (size < HDMI_INFOFRAME_SIZE(AVI))
> return -EINVAL;
> @@ -1566,9 +1561,7 @@ static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame,
> if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AVI)) != 0)
> return -EINVAL;
>
> - ret = hdmi_avi_infoframe_init(frame);
> - if (ret)
> - return ret;
> + hdmi_avi_infoframe_init(frame);
>
> ptr += HDMI_INFOFRAME_HEADER_SIZE;
>
> diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
> index 9918a6c910c5..9613d796cfb1 100644
> --- a/include/linux/hdmi.h
> +++ b/include/linux/hdmi.h
> @@ -207,7 +207,7 @@ struct hdmi_drm_infoframe {
> u16 max_fall;
> };
>
> -int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
> +void hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
> ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
> size_t size);
> ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame,
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