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Use only a trylock in flush queue to prevent deadlocks.

nfactor-troky
Con Kolivas 11 years ago
parent
commit
aa9938973e
  1. 8
      cgminer.c

8
cgminer.c

@ -6614,7 +6614,13 @@ static void flush_queue(struct cgpu_info *cgpu) @@ -6614,7 +6614,13 @@ static void flush_queue(struct cgpu_info *cgpu)
{
struct work *work = NULL;
wr_lock(&cgpu->qlock);
if (unlikely(!cgpu))
return;
/* Use only a trylock in case we get into a deadlock with a queueing
* function holding the read lock when we're called. */
if (wr_trylock(&cgpu->qlock))
return;
work = cgpu->unqueued_work;
cgpu->unqueued_work = NULL;
wr_unlock(&cgpu->qlock);

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