Yu Watanabe
acfc2a1d15
There are three calls of device_cache_sysattr_value(). Two of them are just caching the value. Hence, let's ignore its failure, and propagate original error code. One exception is the last call in sd_device_get_sysattr_value(). Unfortunately, it returns `const char *` instead of `char *`. So, sd_device object must have the reference of the returned value. Hence, error in updating the cache by device_cache_sysattr_value() is critical, and we need to propagate the error in that case.
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