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| author | Tony Lindgren <tony@atomide.com> | 2017-08-10 19:05:53 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-08-10 19:05:53 +0300 |
| commit | c002c27874faaa170b535d03d7efee89ecdd9be4 (patch) | |
| tree | 70d91eba77a9c374e4f0bf9eb8636acba57ca173 /arch/arm64/mm/dma-mapping.c | |
| parent | 866b5e447f1ad3a0d72c139fabe3dd71f351f361 (diff) | |
| parent | 5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff) | |
| download | linux-c002c27874faaa170b535d03d7efee89ecdd9be4.tar.xz | |
Merge tag 'v4.13-rc1' into omap-for-v4.14/mmc-regulator
Linux v4.13-rc1
Diffstat (limited to 'arch/arm64/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 3216e098c058..e90cd1db42a8 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -95,11 +95,6 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags, unsigned long attrs) { - if (dev == NULL) { - WARN_ONCE(1, "Use an actual device structure for DMA allocation\n"); - return NULL; - } - if (IS_ENABLED(CONFIG_ZONE_DMA) && dev->coherent_dma_mask <= DMA_BIT_MASK(32)) flags |= GFP_DMA; @@ -128,10 +123,6 @@ static void __dma_free_coherent(struct device *dev, size_t size, bool freed; phys_addr_t paddr = dma_to_phys(dev, dma_handle); - if (dev == NULL) { - WARN_ONCE(1, "Use an actual device structure for DMA allocation\n"); - return; - } freed = dma_release_from_contiguous(dev, phys_to_page(paddr), @@ -184,7 +175,6 @@ static void *__dma_alloc(struct device *dev, size_t size, no_map: __dma_free_coherent(dev, size, ptr, *dma_handle, attrs); no_mem: - *dma_handle = DMA_ERROR_CODE; return NULL; } @@ -487,7 +477,7 @@ static dma_addr_t __dummy_map_page(struct device *dev, struct page *page, enum dma_data_direction dir, unsigned long attrs) { - return DMA_ERROR_CODE; + return 0; } static void __dummy_unmap_page(struct device *dev, dma_addr_t dev_addr, |