Char device write repeating

Kenneth Adam Miller kennethadammiller at gmail.com
Tue Oct 4 10:58:16 EDT 2016


I have a character device that I am calling write on and which is
succeeding, but which is repeatedly executing. I have hard coded the return
value to one, so I don't think the userland standard library is retrying
but I could be wrong. Can anybody tell me why write would be re-executed by
the kernel and how to fix it? I dont actually copy_from_user, I just need
this in order to signal kernel land.
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