> > > > + wait_for_completion_interruptible(&priv->scl_irq_completion); > > > > > > Error checking/propagation (-ERESTARTSYS)? > > > > Are you sure? ERESTARTSYS belongs to the "These should never be seen by > > user programs." group. > > How else can you inform the user the operation has been interrupted?
Definately not by using something which is marked "should never be seen by user programs" :) In the worst case, I'll add: if (ret) ret = -EINTR; I tested the current code with CTRL+C, there we get EOWNERDEAD back to userspace, even with my code not propagating anything. With sending SIGKILL, I got 143 which is not defined. I want to double check the latter first, might be my tests were flaky...
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