From f27657f2ea7ffc07cc5bd19e7b9f937b4451bbc8 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Thu, 17 Oct 2013 13:35:00 +0300 Subject: [PATCH] drm: Consistently return -ENOENT when a mode object can't be found MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We tend to return -EINVAL for everything. Let's try to help poor userland developers a bit by at least returning -ENONET for missing objects. Signed-off-by: Ville Syrjälä Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 2447bd94a654..6cb24684c789 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1557,7 +1557,7 @@ int drm_mode_getcrtc(struct drm_device *dev, obj = drm_mode_object_find(dev, crtc_resp->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } crtc = obj_to_crtc(obj); @@ -1641,7 +1641,7 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } connector = obj_to_connector(obj); @@ -1757,7 +1757,7 @@ int drm_mode_getencoder(struct drm_device *dev, void *data, obj = drm_mode_object_find(dev, enc_resp->encoder_id, DRM_MODE_OBJECT_ENCODER); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } encoder = obj_to_encoder(obj); @@ -2141,7 +2141,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, DRM_MODE_OBJECT_CRTC); if (!obj) { DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); - ret = -EINVAL; + ret = -ENOENT; goto out; } crtc = obj_to_crtc(obj); @@ -2232,7 +2232,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, if (!obj) { DRM_DEBUG_KMS("Connector id %d unknown\n", out_id); - ret = -EINVAL; + ret = -ENOENT; goto out; } connector = obj_to_connector(obj); @@ -2280,7 +2280,7 @@ static int drm_mode_cursor_common(struct drm_device *dev, obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); - return -EINVAL; + return -ENOENT; } crtc = obj_to_crtc(obj); @@ -3059,7 +3059,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto done; } property = obj_to_property(obj); @@ -3188,7 +3188,7 @@ int drm_mode_getblob_ioctl(struct drm_device *dev, drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto done; } blob = obj_to_blob(obj); @@ -3349,7 +3349,7 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } if (!obj->properties) { @@ -3402,8 +3402,10 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, drm_modeset_lock_all(dev); arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); - if (!arg_obj) + if (!arg_obj) { + ret = -ENOENT; goto out; + } if (!arg_obj->properties) goto out; @@ -3416,8 +3418,10 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, prop_obj = drm_mode_object_find(dev, arg->prop_id, DRM_MODE_OBJECT_PROPERTY); - if (!prop_obj) + if (!prop_obj) { + ret = -ENOENT; goto out; + } property = obj_to_property(prop_obj); if (!drm_property_change_is_valid(property, arg->value)) @@ -3502,7 +3506,7 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } crtc = obj_to_crtc(obj); @@ -3561,7 +3565,7 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev, drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { - ret = -EINVAL; + ret = -ENOENT; goto out; } crtc = obj_to_crtc(obj); @@ -3615,7 +3619,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) - return -EINVAL; + return -ENOENT; crtc = obj_to_crtc(obj); mutex_lock(&crtc->mutex); -- 2.11.0