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platform/chrome: cros_ec: Fix panic notifier registration
Initialize panic notifier to avoid the following lockdep warning:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
[...]
Hardware name: Samsung Exynos (Flattened Device Tree)
Workqueue: events_unbound async_run_entry_fn
unwind_backtrace from show_stack
[...]
blocking_notifier_chain_register from cros_ec_debugfs_probe
cros_ec_debugfs_probe from platform_probe
Fixes: d90fa2c64d
("platform/chrome: cros_ec: Poll EC log on EC panic")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
[tzungbi: trimmed the stack trace in commit message.]
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20230110221033.7441-1-m.szyprowski@samsung.com
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@ -182,6 +182,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
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int err = 0;
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BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier);
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BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->panic_notifier);
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ec_dev->max_request = sizeof(struct ec_params_hello);
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ec_dev->max_response = sizeof(struct ec_response_get_protocol_info);
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