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hid: Handle errors from copyin() in ioctl handlers
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Authored by markj on Dec 19 2023, 3:15 AM.
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Details

Summary

If copyin() fails, the driver will proceed blindly with a zeroed buffer,
which is not what we want. In preparation for annotating copyin() with
__result_use_check, start checking for errors.

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rG FreeBSD src repository
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