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| author | Vadim Bendebury <vbendeb@chromium.org> | 2018-01-30 14:27:59 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-01-31 13:47:15 -0800 |
| commit | cdd2c95284be89c9a7e79a27c35b0e1f1773e27f (patch) | |
| tree | 550855ff7d76e198bef4954442bf6434f5e1dc1b /Makefile.rules | |
| parent | 5a910a86be7e8174d81d194a2a6042e3452ccaf8 (diff) | |
| download | chrome-ec-cdd2c95284be89c9a7e79a27c35b0e1f1773e27f.tar.gz | |
g: protect flash operations
Flash operations in do_flash_op() involve waiting polling for the chip
to complete the operation. If a concurrent operation is started while
another operation is in progress, flash gets confused and locks up.
Let's add a mutex to ensure that flash operation runs to completion
before another operation starts.
BRANCH=cr50
BUG=b:67651754
TEST=multiple times ran firmware update while the device was coming up
and saving TPM status in NVMEM. Observed no failures.
Change-Id: I777a38f8a63cf17d60edb11cc3f916a4ea904741
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/894180
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Mary Ruthven <mruthven@chromium.org>
Diffstat (limited to 'Makefile.rules')
0 files changed, 0 insertions, 0 deletions