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Commit 906b40b2 authored by Aditya Pakki's avatar Aditya Pakki Committed by Vinod Koul
Browse files

dmaengine: stm32-mdma: Add a check on read_u32_array 



In stm32_mdma_probe, after reading the property "st,ahb-addr-masks", the
second call is not checked for failure. This time of check to time of use
case of "count" error is sent upstream.

Signed-off-by: default avatarAditya Pakki <pakki001@umn.edu>
Acked-by: default avatarPierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent bfeffd15

drivers/dma/stm32-mdma.c

+3 −1
Original line number Diff line number Diff line
@@ -1579,9 +1579,11 @@ static int stm32_mdma_probe(struct platform_device *pdev) 


	dmadev->nr_channels = nr_channels;

	dmadev->nr_requests = nr_requests;

	device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",

	ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",

				       dmadev->ahb_addr_masks,

				       count);

	if (ret)

		return ret;

	dmadev->nr_ahb_addr_masks = count;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);