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-rw-r--r--kernel/dma/remap.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/kernel/dma/remap.c b/kernel/dma/remap.c
index 18cc09fc27b9..7a723194ecbe 100644
--- a/kernel/dma/remap.c
+++ b/kernel/dma/remap.c
@@ -204,8 +204,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
204 ret = dma_alloc_from_pool(size, &page, flags); 204 ret = dma_alloc_from_pool(size, &page, flags);
205 if (!ret) 205 if (!ret)
206 return NULL; 206 return NULL;
207 *dma_handle = phys_to_dma(dev, page_to_phys(page)); 207 goto done;
208 return ret;
209 } 208 }
210 209
211 page = __dma_direct_alloc_pages(dev, size, dma_handle, flags, attrs); 210 page = __dma_direct_alloc_pages(dev, size, dma_handle, flags, attrs);
@@ -215,8 +214,10 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
215 /* remove any dirty cache lines on the kernel alias */ 214 /* remove any dirty cache lines on the kernel alias */
216 arch_dma_prep_coherent(page, size); 215 arch_dma_prep_coherent(page, size);
217 216
218 if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) 217 if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) {
219 return page; /* opaque cookie */ 218 ret = page; /* opaque cookie */
219 goto done;
220 }
220 221
221 /* create a coherent mapping */ 222 /* create a coherent mapping */
222 ret = dma_common_contiguous_remap(page, size, VM_USERMAP, 223 ret = dma_common_contiguous_remap(page, size, VM_USERMAP,
@@ -227,9 +228,9 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
227 return ret; 228 return ret;
228 } 229 }
229 230
230 *dma_handle = phys_to_dma(dev, page_to_phys(page));
231 memset(ret, 0, size); 231 memset(ret, 0, size);
232 232done:
233 *dma_handle = phys_to_dma(dev, page_to_phys(page));
233 return ret; 234 return ret;
234} 235}
235 236