[PATCH 2/7] drm: Return -ENOENT when a framebuffer can't be found

[ville.syrj...@linux.intel.com]

From: Ville Syrj?l? <ville.syrj...@linux.intel.com>

Return -ENOENT for framebuffers like we do for other mode objects that
can't be found.

Signed-off-by: Ville Syrj?l? <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/drm_crtc.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index bb5dedd..197956b 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2164,7 +2164,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
                        if (!fb) {
                                DRM_DEBUG_KMS("Unknown FB ID%d\n",
                                                crtc_req->fb_id);
-                               ret = -EINVAL;
+                               ret = -ENOENT;
                                goto out;
                        }
                }
@@ -2654,7 +2654,7 @@ fail_lookup:
        mutex_unlock(&dev->mode_config.fb_lock);
        mutex_unlock(&file_priv->fbs_lock);

-       return -EINVAL;
+       return -ENOENT;
 }

 /**
@@ -2682,7 +2682,7 @@ int drm_mode_getfb(struct drm_device *dev,

        fb = drm_framebuffer_lookup(dev, r->fb_id);
        if (!fb)
-               return -EINVAL;
+               return -ENOENT;

        r->height = fb->height;
        r->width = fb->width;
@@ -2727,7 +2727,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,

        fb = drm_framebuffer_lookup(dev, r->fb_id);
        if (!fb)
-               return -EINVAL;
+               return -ENOENT;

        num_clips = r->num_clips;
        clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
@@ -3636,8 +3636,10 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
                goto out;

        fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
-       if (!fb)
+       if (!fb) {
+               ret = -ENOENT;
                goto out;
+       }

        ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
        if (ret)
-- 
1.8.1.5