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SubjectRe: [PATCH 1/2] dmaengine: xilinx_dma: Fix probe error cleanup
On 24-06-22, 12:05, Swati Agarwal wrote:
> When probe fails remove dma channel resources and disable clocks in
> accordance with the order of resources allocated .

Ok this looks fine and the changes below..
>
> Add missing cleanup in devm_platform_ioremap_resource(), xlnx,num-fstores
> property.

Where is this part?

>
> Signed-off-by: Swati Agarwal <swati.agarwal@xilinx.com>
> Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
> ---
> drivers/dma/xilinx/xilinx_dma.c | 14 ++++++++------
> 1 file changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
> index cd62bbb50e8b..fbf341e8c36f 100644
> --- a/drivers/dma/xilinx/xilinx_dma.c
> +++ b/drivers/dma/xilinx/xilinx_dma.c
> @@ -3160,8 +3160,10 @@ static int xilinx_dma_probe(struct platform_device *pdev)
>
> /* Request and map I/O memory */
> xdev->regs = devm_platform_ioremap_resource(pdev, 0);
> - if (IS_ERR(xdev->regs))
> - return PTR_ERR(xdev->regs);
> + if (IS_ERR(xdev->regs)) {
> + err = PTR_ERR(xdev->regs);
> + goto disable_clks;
> + }
>
> /* Retrieve the DMA engine properties from the device tree */
> xdev->max_buffer_len = GENMASK(XILINX_DMA_MAX_TRANS_LEN_MAX - 1, 0);
> @@ -3190,7 +3192,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
> if (err < 0) {
> dev_err(xdev->dev,
> "missing xlnx,num-fstores property\n");
> - return err;
> + goto disable_clks;
> }
>
> err = of_property_read_u32(node, "xlnx,flush-fsync",
> @@ -3259,7 +3261,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
> for_each_child_of_node(node, child) {
> err = xilinx_dma_child_probe(xdev, child);
> if (err < 0)
> - goto disable_clks;
> + goto error;
> }
>
> if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) {
> @@ -3294,12 +3296,12 @@ static int xilinx_dma_probe(struct platform_device *pdev)
>
> return 0;
>
> -disable_clks:
> - xdma_disable_allclks(xdev);
> error:
> for (i = 0; i < xdev->dma_config->max_channels; i++)
> if (xdev->chan[i])
> xilinx_dma_chan_remove(xdev->chan[i]);
> +disable_clks:
> + xdma_disable_allclks(xdev);
>
> return err;
> }
> --
> 2.17.1

--
~Vinod

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