[linux-dvb] [PATCH] Fix deadlock in demux code

Andreas Oberritter obi at linuxtv.org
Wed Sep 24 10:00:37 CEST 2008


The functions dvb_dmxdev_section_callback, dvb_dmxdev_ts_callback,
dvb_dmx_swfilter_packet, dvb_dmx_swfilter_packets, dvb_dmx_swfilter and
dvb_dmx_swfilter_204 may be called from both interrupt and process
context. Therefore they need to be protected by spin_lock_irqsave()
instead of spin_lock().

This fixes a deadlock discovered by lockdep.

Signed-off-by: Andreas Oberritter <obi at linuxtv.org>
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