[PATCH] x86: gart alloc_coherent doesn't need to check NULL device argument

[FUJITA Tomonori]

asm/dma-mapping.h guarantees that gart alloc_coherent doesn't get NULL
device argument.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
---
 arch/x86/kernel/pci-gart_64.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 4d08649..0b99d4a 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -506,9 +506,6 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
 
 	align_mask = (1UL << get_order(size)) - 1;
 
-	if (!dev)
-		dev = &x86_dma_fallback_dev;
-
 	*dma_addr = dma_map_area(dev, __pa(vaddr), size, DMA_BIDIRECTIONAL,
 				 align_mask);
 	flush_gart();
-- 
1.5.4.2

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