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author | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
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committer | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
commit | 23930fa1cebfea6f79881c588ccd1b0781e49e3f (patch) | |
tree | 36d29e3f83661c4f5f45b6f74ac0d5f9886867a8 /arch/powerpc/kernel/dma_64.c | |
parent | 36b35a5be0e4b406acd816e2122d153e875105be (diff) | |
parent | 4f5537de7c1531398e84e18a24f667e49cc94208 (diff) | |
download | kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.zip kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.gz kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.bz2 |
Merge branch 'master' into upstream
Diffstat (limited to 'arch/powerpc/kernel/dma_64.c')
-rw-r--r-- | arch/powerpc/kernel/dma_64.c | 65 |
1 files changed, 28 insertions, 37 deletions
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 36aaa76..6c168f6 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -35,10 +35,9 @@ int dma_supported(struct device *dev, u64 mask) { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->dma_supported(dev, mask); - BUG(); - return 0; + BUG_ON(!dma_ops); + + return dma_ops->dma_supported(dev, mask); } EXPORT_SYMBOL(dma_supported); @@ -66,10 +65,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); - BUG(); - return NULL; + BUG_ON(!dma_ops); + + return dma_ops->alloc_coherent(dev, size, dma_handle, flag); } EXPORT_SYMBOL(dma_alloc_coherent); @@ -78,10 +76,9 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); } EXPORT_SYMBOL(dma_free_coherent); @@ -90,10 +87,9 @@ dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_single(dev, cpu_addr, size, direction); - BUG(); - return (dma_addr_t)0; + BUG_ON(!dma_ops); + + return dma_ops->map_single(dev, cpu_addr, size, direction); } EXPORT_SYMBOL(dma_map_single); @@ -102,10 +98,9 @@ void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_single(dev, dma_addr, size, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_single(dev, dma_addr, size, direction); } EXPORT_SYMBOL(dma_unmap_single); @@ -115,11 +110,10 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_single(dev, - (page_address(page) + offset), size, direction); - BUG(); - return (dma_addr_t)0; + BUG_ON(!dma_ops); + + return dma_ops->map_single(dev, page_address(page) + offset, size, + direction); } EXPORT_SYMBOL(dma_map_page); @@ -128,10 +122,9 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_single(dev, dma_address, size, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_single(dev, dma_address, size, direction); } EXPORT_SYMBOL(dma_unmap_page); @@ -140,10 +133,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - return dma_ops->map_sg(dev, sg, nents, direction); - BUG(); - return 0; + BUG_ON(!dma_ops); + + return dma_ops->map_sg(dev, sg, nents, direction); } EXPORT_SYMBOL(dma_map_sg); @@ -152,9 +144,8 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, { struct dma_mapping_ops *dma_ops = get_dma_ops(dev); - if (dma_ops) - dma_ops->unmap_sg(dev, sg, nhwentries, direction); - else - BUG(); + BUG_ON(!dma_ops); + + dma_ops->unmap_sg(dev, sg, nhwentries, direction); } EXPORT_SYMBOL(dma_unmap_sg); |