Re: [PATCH v2] firmware: fix sending -ERESTARTSYS due to signal on fallback

On Thu, May 25, 2017 at 10:28:38AM +0200, Fuzzey, Martin wrote:

1) Android init calls write() on the sysfs file
2) The sysfs .store() callback registered by a driver is called
3) The driver calls request_firmware()
4) request_firmware() sends the firmware load request to userspace and
calls wait_for_completion_interruptible()

Martin, just for completeness on documenting on the commit log of the next
swait proposed fix for this -- what signal did the process get from which you
note the child dies below ? Exactly what in Android sent this signal ?

5) A child dies and raises SIGCHLD
6) wait_for_completion_interruptible() returns -ERESTARTSYS due to the signal

  Luis