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dmaengine: xilinx_dma: fix incompatible param warning in _child_probe()

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commit faeb0731be0a31e2246b21a85fa7dabbd750101d upstream.

In xilinx_dma_child_probe function, the nr_channels variable is
passed to of_property_read_u32() which expects an u32 return value
pointer. Modify the nr_channels variable type from int to u32 to
fix the incompatible parameter coverity warning.

Addresses-Coverity: Event incompatible_param.
Fixes: 1a9e7a03c7 ("dmaengine: vdma: Add support for mulit-channel dma mode")
Signed-off-by: Shravya Kumbham <shravya.kumbham@xilinx.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Link: https://lore.kernel.org/r/1608722462-29519-3-git-send-email-radhey.shyam.pandey@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shravya Kumbham 2020-12-23 16:51:01 +05:30 • committed by Greg Kroah-Hartman
commit d0eaf8a8ef
1 changed files with 2 additions and 1 deletions
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3
drivers/dma/xilinx/xilinx_dma.c
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@ -2543,7 +2543,8 @@ static int xilinx_dma_chan_probe(struct xilinx_dma_device *xdev,
static int xilinx_dma_child_probe(struct xilinx_dma_device *xdev,
struct device_node *node)
{
int ret, i, nr_channels = 1;
int ret, i;
u32 nr_channels = 1;
ret = of_property_read_u32(node, "dma-channels", &nr_channels);
if ((ret < 0) && xdev->mcdma)