Re: [PATCH v3] mtd: rawnand: qcom: unmap dma address during probe failure

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Hi Miquel,

On 9/12/2023 3:56 PM, Miquel Raynal wrote:
Hi Bibek,

quic_bibekkum@xxxxxxxxxxx wrote on Tue, 12 Sep 2023 15:48:14 +0530:

Title: s/during/upon/?

Fix address argument of nand controller currently being
passed to dma_unmap_resource() in probe error path.

What about:


Sure, this looks more compact and simpler.
will use this for the title.
	v

	Unmap the right resource upon probe failure: we currently
	provide the physical address of the DMA region rather than the
	output of dma_map_resource() which is obviously wrong.

	^
Will keep the rest in commit description. Thanks for this suggestion

This address argument should be the dma address returned by
dma_map_resource() instead of the physical address of nand controller.


Fixes: 7330fc505af4 ("mtd: rawnand: qcom: stop using phys_to_dma()")
Signed-off-by: Bibek Kumar Patro <quic_bibekkum@xxxxxxxxxxx>
---
v3: Incorporated comments from Miquel
     - Modified the commit message and title as per suggestions.

v2: Incorporated comments from Pavan/Mani.
     https://lore.kernel.org/all/20230911133026.29868-1-quic_bibekkum@xxxxxxxxxxx/

v1: https://lore.kernel.org/all/20230907092854.11408-1-quic_bibekkum@xxxxxxxxxxx/

  drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index 64499c1b3603..b079605c84d3 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -3444,7 +3444,7 @@ static int qcom_nandc_probe(struct platform_device *pdev)
  err_aon_clk:
  	clk_disable_unprepare(nandc->core_clk);
  err_core_clk:
-	dma_unmap_resource(dev, res->start, resource_size(res),
+	dma_unmap_resource(dev, nandc->base_dma, resource_size(res),
  			   DMA_BIDIRECTIONAL, 0);
  	return ret;
  }
--
2.17.1



Thanks,
Miquèl

Thanks & regards,
Bibek



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