Thread (3 messages) 3 messages, 3 authors, 2020-05-15

RE: [PATCH] dmaengine: imx-sdma: initialize all script addresses

From: Robin Gong <hidden>
Date: 2020-05-13 08:02:46
Also in: dmaengine

On 2020/05/13 14:04 Sascha Hauer [off-list ref] wrote:
quoted hunk ↗ jump to hunk
The script addresses array increases with each new version. The driver
initializes the array to -EINVAL initially, but only up to the size of the v1 array.
Initialize the additional addresses for the newer versions as well. Without this
unitialized values of the newer arrays are treated as valid.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/dma/imx-sdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index
01422e721b26e..2ca79357f57dc 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -2080,7 +2080,7 @@ static int sdma_probe(struct platform_device *pdev)

 	/* initially no scripts available */
 	saddr_arr = (s32 *)sdma->script_addrs;
-	for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++)
+	for (i = 0; i < sizeof(*sdma->script_addrs) / sizeof(s32); i++)
 		saddr_arr[i] = -EINVAL;
Reviewed-by : Robin Gong [off-list ref]
 	dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask);
--
2.26.2

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