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No ifs, not buts: drivers must pass -EINTR to the core whenever received from a blocking call. NOTE: this change also prevents userland from receiving a partial byte count from an interrupted read/write operation, although such amount of bytes may have been transferred from/to the corresponding software FIFO. Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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