powerpc: Fix bug in iommu_alloc_coherent causing hang during boot

In commit 8eb6c6e3b9c8bfed3d75536ab142d7694627c2e5, Christoph Hellwig
made iommu_alloc_coherent able to do node-local allocations, but
unfortunately got the order of the arguments to alloc_pages_node
wrong.  This fixes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index cbb794556d02..cef8cba8329b 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -561,7 +561,7 @@ void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size,
                 return NULL;
 
         /* Alloc enough pages (and possibly more) */
-        page = alloc_pages_node(flag, order, node);
+        page = alloc_pages_node(node, flag, order);
         if (!page)
                 return NULL;
         ret = page_address(page);