mm/vmalloc: do not call kmemleak_free() on not yet accounted memory

mm/vmalloc: do not call kmemleak_free() on not yet accounted memory

__vmalloc_area_node() calls vfree() on error path, which in turn calls
kmemleak_free(), but area is not yet accounted by kmemleak_vmalloc().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Roman Penyaev <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: "Luis R. Rodriguez" <[email protected]>
Cc: Catalin Marinas <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>