[PATCH V3 6/8] arm: dma-mapping: Reset the device's dma_ops

[Sricharan R <sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>]

The dma_ops for the device is not getting set to NULL in
arch_tear_down_dma_ops and this causes an issue when the
device's probe gets deferred and retried. So reset the
dma_ops to NULL.

Signed-off-by: Sricharan R <sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
---
 arch/arm/mm/dma-mapping.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index dde6514..b9191f0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2295,6 +2295,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev)
 
 	__arm_iommu_detach_device(dev);
 	arm_iommu_release_mapping(mapping);
+	set_dma_ops(dev, NULL);
 }
 
 #else
-- 
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