ioat: ring size variables need to be 32bit to avoid overflow

[cascardo/linux.git] / drivers / dma / ioat / dma_v2.c

diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index cb8864d..143cb1b 100644 (file)
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -575,9 +575,9 @@ bool reshape_ring(struct ioat2_dma_chan *ioat, int order)
         */
        struct ioat_chan_common *chan = &ioat->base;
        struct dma_chan *c = &chan->common;
-       const u16 curr_size = ioat2_ring_size(ioat);
+       const u32 curr_size = ioat2_ring_size(ioat);
        const u16 active = ioat2_ring_active(ioat);
-       const u16 new_size = 1 << order;
+       const u32 new_size = 1 << order;
        struct ioat_ring_ent **ring;
        u16 i;