Oct. 4, 2016
3:05 p.m.
On Tue, Oct 04, 2016 at 10:58:16AM -0400, Kenneth Adam Miller wrote:
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.
Do you have a pointer to your code somewhere? This is a very common bug that people have... thanks, greg k-h