[PATCH] swiotlb-xen: remove redundant NULL check

[Daniil Dulov <d.dulov@xxxxxxxxxx>]

In this case hwdev cannot be NULL, so remove redundant NULL check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b097186fd29d ("swiotlb-xen: SWIOTLB library for Xen PV guest with PCI 
passthrough.")
Signed-off-by: Daniil Dulov <d.dulov@xxxxxxxxxx>
---
 drivers/xen/swiotlb-xen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 2b385c1b4a99..b166f6efea26 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -305,7 +305,7 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t 
size,
        if (!ret)
                return ret;
 
-       if (hwdev && hwdev->coherent_dma_mask)
+       if (hwdev->coherent_dma_mask)
                dma_mask = hwdev->coherent_dma_mask;
 
        /* At this point dma_handle is the dma address, next we are
-- 
2.25.1