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authorIngo Molnar <mingo@elte.hu>2008-08-11 07:40:56 -0400
committerIngo Molnar <mingo@elte.hu>2008-08-11 07:40:56 -0400
commit251a169c69d1ff07cee7a9bb9fc4faff6b1d2ac3 (patch)
tree3c20c3e080f276848f2ad67aadab44a5d64bfda9 /kernel/dma-coherent.c
parent6679ce6e5f519096612b480d255d9ca97be0c2be (diff)
parent796aadeb1b2db9b5d463946766c5bbfd7717158c (diff)
Merge branch 'linus' into sched/urgent
Diffstat (limited to 'kernel/dma-coherent.c')
-rw-r--r--kernel/dma-coherent.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/dma-coherent.c b/kernel/dma-coherent.c
index 7517115a8cce..91e96950cd52 100644
--- a/kernel/dma-coherent.c
+++ b/kernel/dma-coherent.c
@@ -77,15 +77,14 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
77{ 77{
78 struct dma_coherent_mem *mem = dev->dma_mem; 78 struct dma_coherent_mem *mem = dev->dma_mem;
79 int pos, err; 79 int pos, err;
80 int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1);
81 80
82 pages >>= PAGE_SHIFT; 81 size += device_addr & ~PAGE_MASK;
83 82
84 if (!mem) 83 if (!mem)
85 return ERR_PTR(-EINVAL); 84 return ERR_PTR(-EINVAL);
86 85
87 pos = (device_addr - mem->device_base) >> PAGE_SHIFT; 86 pos = (device_addr - mem->device_base) >> PAGE_SHIFT;
88 err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages)); 87 err = bitmap_allocate_region(mem->bitmap, pos, get_order(size));
89 if (err != 0) 88 if (err != 0)
90 return ERR_PTR(err); 89 return ERR_PTR(err);
91 return mem->virt_base + (pos << PAGE_SHIFT); 90 return mem->virt_base + (pos << PAGE_SHIFT);