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Add spinlocks to interrupt handler.

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This commit is contained in:
Gareth Hughes 2001-01-31 18:33:34 +00:00
parent c76a35b3c8
commit 30da0a74b5
1 changed files with 2 additions and 0 deletions
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2
linux/mga_dma.c
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@ -1256,7 +1256,9 @@ static void mga_dma_service( int irq, void *device, struct pt_regs *regs )
MGA_WRITE( MGA_ICLEAR, MGA_SOFTRAPICLR );
spin_lock( &primary->lock );
tail = primary->tail + dev_priv->primary->offset;
spin_unlock( &primary->lock );
DRM_DEBUG( " *** wrap interrupt:\n" );
DRM_DEBUG( " head = 0x%06x\n", head - dev_priv->primary->offset );