diff options
Diffstat (limited to 'mm')
-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, | |||
106 | { | 106 | { |
107 | struct dma_pool *retval; | 107 | struct dma_pool *retval; |
108 | 108 | ||
109 | if (align == 0) | 109 | if (align == 0) { |
110 | align = 1; | 110 | align = 1; |
111 | if (size == 0) | 111 | } else if (align & (align - 1)) { |
112 | return NULL; | 112 | return NULL; |
113 | else if (size < align) | ||
114 | size = align; | ||
115 | else if ((size % align) != 0) { | ||
116 | size += align + 1; | ||
117 | size &= ~(align - 1); | ||
118 | } | 113 | } |
119 | 114 | ||
115 | if (size == 0) | ||
116 | return NULL; | ||
117 | |||
118 | if ((size % align) != 0) | ||
119 | size = ALIGN(size, align); | ||
120 | |||
120 | if (allocation == 0) { | 121 | if (allocation == 0) { |
121 | if (PAGE_SIZE < size) | 122 | if (PAGE_SIZE < size) |
122 | allocation = size; | 123 | allocation = size; |