diff options
Diffstat (limited to 'mm/dmapool.c')
| -rw-r--r-- | mm/dmapool.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/mm/dmapool.c b/mm/dmapool.c index 2372ed5a33d3..fd5fe4342e93 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -135,28 +135,25 @@ struct dma_pool *dma_pool_create(const char *name, struct device *dev, size_t allocation; bool empty = false; - if (align == 0) { + if (align == 0) align = 1; - } else if (align & (align - 1)) { + else if (align & (align - 1)) return NULL; - } - if (size == 0) { + if (size == 0) return NULL; - } else if (size < 4) { + else if (size < 4) size = 4; - } if ((size % align) != 0) size = ALIGN(size, align); allocation = max_t(size_t, size, PAGE_SIZE); - if (!boundary) { + if (!boundary) boundary = allocation; - } else if ((boundary < size) || (boundary & (boundary - 1))) { + else if ((boundary < size) || (boundary & (boundary - 1))) return NULL; - } retval = kmalloc_node(sizeof(*retval), GFP_KERNEL, dev_to_node(dev)); if (!retval) |
