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fs_mgr_avb: allow top-level vbmeta struct to be in 'boot' partition 

avb_ops->read_from_partition() should return
AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION if the requested partition does
not exist. Then libavb will try to load top-level vbmeta from /boot partition.

Two related changes in external/avb:

  https://android-review.googlesource.com/#/c/344907/
  https://android-review.googlesource.com/#/c/348731/

Bug: 35880930
Test: test AVB on bullhead with top-level vbmeta being at /boot
Change-Id: I80355ba5ae4d29a6f102714cd2f7c2550b238f27
This commit is contained in:
Bowgo Tsai 2017-03-27 21:29:10 +08:00
parent d444f8663d
commit b016896c98
1 changed files with 1 additions and 1 deletions
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2
fs_mgr/fs_mgr_avb_ops.cpp
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@ -78,7 +78,7 @@ static AvbIOResult read_from_partition(AvbOps* ops ATTRIBUTE_UNUSED, const char*
// access. fs_mgr_test_access() will test a few iterations if the
// path doesn't exist yet.
if (fs_mgr_test_access(path.c_str()) < 0) {
return AVB_IO_RESULT_ERROR_IO;
return AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION;
}
android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(path.c_str(), O_RDONLY | O_CLOEXEC)));