cbad5a7ae1
If the driver is loaded with vpmsupport=0, then it was possible to create a deadlock situation since the call into __dahdi_ec_chunk might then try to grab the channel lock while already holding the reglock. The purpose of grabbing reglock in the DMA routines was to protect the channel array, which can be changed when linemode is changing. So instead, we'll completely mask off that interrupt line from all CPUs when potentially changing the channel array. Signed-off-by: Shaun Ruffell <sruffell@digium.com> |
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