diff options
Diffstat (limited to 'arch/powerpc/kernel/dma.c')
| -rw-r--r-- | arch/powerpc/kernel/dma.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 41fdd48bf43..1562daf8839 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -30,11 +30,15 @@ static unsigned long get_dma_direct_offset(struct device *dev) void *dma_direct_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { + void *ret; #ifdef CONFIG_NOT_COHERENT_CACHE - return __dma_alloc_coherent(size, dma_handle, flag); + ret = __dma_alloc_coherent(size, dma_handle, flag); + if (ret == NULL) + return NULL; + *dma_handle += get_dma_direct_offset(dev); + return ret; #else struct page *page; - void *ret; int node = dev_to_node(dev); /* ignore region specifiers */ |