| Message ID | 20240513153109.46786-12-sui.jingfeng@linux.dev (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | Remove redundant checks on existence of 'bridge->encoder' | expand |
diff --git a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c index 6967325cd8ee..9b5bebbe357d 100644 --- a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c +++ b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c @@ -116,11 +116,6 @@ int ldb_bridge_attach_helper(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(ldb->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, ldb_ch->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c index d0868a6ac6c9..e6dbbdc87ce2 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c @@ -119,11 +119,6 @@ static int imx8qxp_pc_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(pc->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, ch->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c index ed8b7a4e0e11..1d11cc1df43c 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c @@ -138,11 +138,6 @@ static int imx8qxp_pixel_link_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(pl->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, pl->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c index 4a886cb808ca..fb7cf4369bb8 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c @@ -58,11 +58,6 @@ static int imx8qxp_pxl2dpi_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(p2d->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, p2d->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
The checks on the existence of bridge->encoder in the implementation of drm_bridge_funcs::attach() is not necessary, as it has already been checked in the drm_bridge_attach() function call by previous bridge or KMS driver. The drm_bridge_attach() will quit with a negative error code returned if it fails for some reasons, hence, it is guaranteed that the .encoder member of the drm_bridge instance is not NULL when various i.MX specific bridge attach functions are called. Remove the redundant checking codes "if (!bridge->encoder) { ... }". Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev> --- drivers/gpu/drm/bridge/imx/imx-ldb-helper.c | 5 ----- drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c | 5 ----- drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 5 ----- drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 5 ----- 4 files changed, 20 deletions(-)