tree 9a0302a6f5f0218774d58119401c6b243ea29cfa
parent ee284f91e724a7652524be22bca16678bbed7107
author Heiko Stuebner <heiko.stuebner@theobroma-systems.com> 1571841998 +0200
committer Simon Glass <sjg@chromium.org> 1573736974 -0600

fdtdec: protect against another NULL phandlep in fdtdec_add_reserved_memory()

The change adding fdtdec_add_reserved_memory() already protected the added
phandle against the phandlep being NULL - making the phandlep var optional.

But in the early code checking for an already existing carveout this check
was not done and thus the phandle assignment could run into trouble,
so add a check there as well, which makes the function still return
successfully if a matching region is found, even though no-one wants to
work with the phandle.

Fixes: c9222a08b3f7 ("fdtdec: Implement fdtdec_add_reserved_memory()")
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>