iommu=pt is a valid early param

This avoids a "Malformed early option 'iommu'" warning on boot when 
trying to use pass-through mode.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 1a041bcf506b..ae13e34f7248 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -212,10 +212,8 @@ static __init int iommu_setup(char *p)
                 if (!strncmp(p, "soft", 4))
                         swiotlb = 1;
 #endif
-                if (!strncmp(p, "pt", 2)) {
+                if (!strncmp(p, "pt", 2))
                         iommu_pass_through = 1;
-                        return 1;
-                }
 
                 gart_parse_options(p);