1 files changed, 3 insertions, 0 deletions
diff --git a/gfx/gl/GLTextureImage.cpp b/gfx/gl/GLTextureImage.cpp
index c91d558af..65678432d 100644
--- a/gfx/gl/GLTextureImage.cpp
+++ b/gfx/gl/GLTextureImage.cpp
@@ -149,6 +149,9 @@ BasicTextureImage::DirectUpdate(gfx::DataSourceSurface* aSurf, const nsIntRegion
                                &uploadSize,
                                needInit,
                                aFrom);
+    if (mTextureFormat == SurfaceFormat::UNKNOWN) {
+        return false;
+    }
 
     if (uploadSize > 0) {
         UpdateUploadSize(uploadSize);