Fix IOSurface memory leakHEADdev

IOSurface is reference counted by the OS. Chromium wraps it by
gfx::ScopedIOSurface to handle reference counter implicitly.
Calling gfx::ScopedIOSurface::release() doesn't decrement the counter
just release the ownership, see //base/apple/scoped_typeref.h. Without
ownership, gfx::ScopedIOSurface cannot decrement the counter at the end
of the scope and IOSurface remains in the memory. As a fix, replace the
release() call with get() and let the scoper handle the lifetime of the
object.

Also release MTLTexture during clean-up because it can also hold
reference to the IOSurface.

Fixes: QTBUG-124353
Pick-to: 6.7
Change-Id: Idf590b1e48f0c988de8fc71556e99a43749d52e5
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Anu Aliyas <anu.aliyas@qt.io>

0 files changed, 0 insertions, 0 deletions