[PATCH] dma-buf: use struct_size macro

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Instead of manually calculating the structure size.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
 drivers/dma-buf/dma-resv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index 1c8f2581cb09..bb5a42b10c29 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -63,7 +63,7 @@ static struct dma_resv_list *dma_resv_list_alloc(unsigned int shared_max)
 {
 	struct dma_resv_list *list;
 
-	list = kmalloc(offsetof(typeof(*list), shared[shared_max]), GFP_KERNEL);
+	list = kmalloc(struct_size(list, shared, shared_max), GFP_KERNEL);
 	if (!list)
 		return NULL;
 
-- 
2.17.1

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