diff options
| -rw-r--r-- | mm/dmapool.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/dmapool.c b/mm/dmapool.c index b5ff9ce8765b..744d541df866 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -106,17 +106,18 @@ struct dma_pool *dma_pool_create(const char *name, struct device *dev, { struct dma_pool *retval; - if (align == 0) + if (align == 0) { align = 1; - if (size == 0) + } else if (align & (align - 1)) { return NULL; - else if (size < align) - size = align; - else if ((size % align) != 0) { - size += align + 1; - size &= ~(align - 1); } + if (size == 0) + return NULL; + + if ((size % align) != 0) + size = ALIGN(size, align); + if (allocation == 0) { if (PAGE_SIZE < size) allocation = size; |