Luiz Otavio O Souza c213658943 The BCM2835 GPIO controller uses has interrupt lines and not only one.
Allocate all four, we will use them soon.

Simplificate the allocation of memory and interrupt resources with a single
bus_alloc_resources() call instead of doing them separately.

Destroy the mutex in case of errors.
2015-01-30 18:18:09 +00:00
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