tree 0a1c9884a12a31d2db62a9bab5d85eeaa034e5c0
parent 8de9be002a5bebd174aa38fbdd2a06d465cad2b6
author Simon Glass <sjg@chromium.org> 1635031562 -0600
committer Simon Glass <sjg@chromium.org> 1638143511 -0700

disk: part_dos: Fix a NULL pointer error

When ext is NULL we cannot dereference it. Update the code flow to avoid
this, so that layout_mbr_partitions() can be used with partition tables
that do not include an extended partition.

Signed-off-by: Simon Glass <sjg@chromium.org>