in "mei: implement fasync for event notification" a ->fasync() instance is
added as
static int mei_fasync(int fd, struct file *file, int band)
{
struct mei_cl *cl = file->private_data;
if (!mei_cl_is_connected(cl))
return POLLERR;
return fasync_helper(fd, file, band, &cl->ev_async);
}
Valid return values for ->fasync() are 0, 1 and -E...; 8 (aka POLLERR) is not.
What had been intended there? -ENODEV? Some other error? As it is, the
thing is broken.
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