Alexander Kabaev 8cf27a3330 Restore the check for non-NULL dmatag in sndbuf_free.
The sound drivers that use own buffer management can use sndbuf_setup
and not do any busdma allocation, so the driver will end up with the
managed buffer but no valid dma map and tag for it. Avoid calling
bus_dmamem_free in such cases.

Reported by: ache
Missed in review by: kan
2014-06-23 03:45:39 +00:00
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2014-06-09 19:36:08 +00:00
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