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-rw-r--r--arch/arm/xen/mm.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 223b1151fd7d..a7e54a087b80 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -138,9 +138,15 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
static int __init xen_mm_init(void)
{
struct gnttab_cache_flush cflush;
+ int rc;
+
if (!xen_swiotlb_detect())
return 0;
- xen_swiotlb_init();
+
+ rc = xen_swiotlb_init();
+ /* we can work with the default swiotlb */
+ if (rc < 0 && rc != -EEXIST)
+ return rc;
cflush.op = 0;
cflush.a.dev_bus_addr = 0;