[IA64-SGI] Altix only: Fix for sn_dma_flush

The following patch fixes a bug in the SGI Altix sn_dma_flush code.  
sn_dma_flush is broken in 2.6.  The code isn't waiting for the DMA 
data to be flushed out of the PIC ASIC. This patch is based off the 
linux-ia64-test-2.6.12 tree

Signed-off-by: Mike Habeck <habeck@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
index c90685985d81..64af2b2c1787 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
@@ -301,7 +301,7 @@ void sn_dma_flush(uint64_t addr)
                 spin_lock_irqsave(&((struct sn_flush_device_list *)p)->
                                   sfdl_flush_lock, flags);
 
-                p->sfdl_flush_value = 0;
+                *p->sfdl_flush_addr = 0;
 
                 /* force an interrupt. */
                 *(volatile uint32_t *)(p->sfdl_force_int_addr) = 1;