drm/vc4: Demote user-accessible DRM_ERROR paths to DRM_DEBUG.
Userspace shouldn't be able to spam dmesg by passing bad arguments.
This has particularly become an issues since we started using a bad
argument to set_tiling to detect if set_tiling was supported.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 83753117f1de ("drm/vc4: Add get/set tiling ioctls.")
Link: https://patchwork.freedesktop.org/patch/msgid/20170725162733.28007-1-eric@anholt.net
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 8b31f17..dfe7554 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -169,7 +169,7 @@ static struct drm_framebuffer *vc4_fb_create(struct drm_device *dev,
gem_obj = drm_gem_object_lookup(file_priv,
mode_cmd->handles[0]);
if (!gem_obj) {
- DRM_ERROR("Failed to look up GEM BO %d\n",
+ DRM_DEBUG("Failed to look up GEM BO %d\n",
mode_cmd->handles[0]);
return ERR_PTR(-ENOENT);
}