drm: Unify and fix idr error handling
The error handling code w.r.t. idr usage looks inconsistent. In the case of drm_mode_object_get() and drm_ctxbitmap_next() the error handling is also incomplete. Unify the code to follow the same pattern always. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -85,11 +85,12 @@ static int drm_ctxbitmap_next(struct drm_device * dev)
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mutex_lock(&dev->struct_mutex);
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ret = idr_get_new_above(&dev->ctx_idr, NULL,
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DRM_RESERVED_CONTEXTS, &new_id);
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if (ret == -EAGAIN) {
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mutex_unlock(&dev->struct_mutex);
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goto again;
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}
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mutex_unlock(&dev->struct_mutex);
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if (ret == -EAGAIN)
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goto again;
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else if (ret)
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return ret;
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return new_id;
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}
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@ -227,7 +227,7 @@ static int drm_mode_object_get(struct drm_device *dev,
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again:
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if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
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DRM_ERROR("Ran out memory getting a mode number\n");
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return -EINVAL;
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return -ENOMEM;
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}
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mutex_lock(&dev->mode_config.idr_mutex);
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@ -235,6 +235,8 @@ static int drm_mode_object_get(struct drm_device *dev,
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mutex_unlock(&dev->mode_config.idr_mutex);
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if (ret == -EAGAIN)
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goto again;
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else if (ret)
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return ret;
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obj->id = new_id;
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obj->type = obj_type;
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@ -272,8 +272,7 @@ drm_gem_handle_create(struct drm_file *file_priv,
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spin_unlock(&file_priv->table_lock);
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if (ret == -EAGAIN)
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goto again;
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if (ret != 0)
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else if (ret)
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return ret;
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drm_gem_object_handle_reference(obj);
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@ -456,8 +455,7 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
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if (ret == -EAGAIN)
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goto again;
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if (ret != 0)
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else if (ret)
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goto err;
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/* Allocate a reference for the name table. */
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@ -122,11 +122,10 @@ static int drm_minor_get_id(struct drm_device *dev, int type)
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ret = idr_get_new_above(&drm_minors_idr, NULL,
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base, &new_id);
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mutex_unlock(&dev->struct_mutex);
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if (ret == -EAGAIN) {
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if (ret == -EAGAIN)
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goto again;
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} else if (ret) {
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else if (ret)
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return ret;
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}
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if (new_id >= limit) {
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idr_remove(&drm_minors_idr, new_id);
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