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| author | Kelvin Zhang <zhangkelvin@google.com> | 2022-12-06 09:57:20 -0800 |
|---|---|---|
| committer | Kelvin Zhang <zhangkelvin@google.com> | 2022-12-06 10:47:27 -0800 |
| commit | 66ca49d58e69ad700943c5058f69b9c11db757cc (patch) | |
| tree | ad10241438a422f16b0b2ba0712bb4662c5d4c89 /libfec | |
| parent | f96ce5f411f6e9745bec01c66946f3056d6a45d5 (diff) | |
| download | extras-66ca49d58e69ad700943c5058f69b9c11db757cc.tar.gz | |
Allow libfec to correct bad blocks
dm-verity already corrects I/O errors. userspace library libfec should
behave in the same way. This allows us to correct more errors during
OTA.
Test: th
Bug: 259622792
Change-Id: I0e53d7ff47474524f12c6a2abd901f55ed927137
Diffstat (limited to 'libfec')
| -rw-r--r-- | libfec/fec_read.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libfec/fec_read.cpp b/libfec/fec_read.cpp index 889f990d..28a7c898 100644 --- a/libfec/fec_read.cpp +++ b/libfec/fec_read.cpp @@ -325,8 +325,12 @@ static ssize_t verity_read(fec_handle *f, uint8_t *dest, size_t count, /* copy raw data without error correction */ if (!raw_pread(f->fd, data, FEC_BLOCKSIZE, curr_offset)) { - error("failed to read: %s", strerror(errno)); - return -1; + if (errno == EIO) { + warn("I/O error encounter when reading, attempting to recover using fec"); + } else { + error("failed to read: %s", strerror(errno)); + return -1; + } } if (likely(f->hashtree().check_block_hash_with_index(curr, data))) { |