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Diffstat (limited to 'drivers/dma/xilinx/xilinx_dma.c')
-rw-r--r--drivers/dma/xilinx/xilinx_dma.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index e40696f6f8..5eb51ae93e 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -112,7 +112,9 @@
/* Register Direct Mode Registers */
#define XILINX_DMA_REG_VSIZE 0x0000
+#define XILINX_DMA_VSIZE_MASK GENMASK(12, 0)
#define XILINX_DMA_REG_HSIZE 0x0004
+#define XILINX_DMA_HSIZE_MASK GENMASK(15, 0)
#define XILINX_DMA_REG_FRMDLY_STRIDE 0x0008
#define XILINX_DMA_FRMDLY_STRIDE_FRMDLY_SHIFT 24
@@ -2050,6 +2052,10 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan,
if (!xt->numf || !xt->sgl[0].size)
return NULL;
+ if (xt->numf & ~XILINX_DMA_VSIZE_MASK ||
+ xt->sgl[0].size & ~XILINX_DMA_HSIZE_MASK)
+ return NULL;
+
if (xt->frame_size != 1)
return NULL;