linux-kernel - [PATCH 2/2] dmaengine: of: constify of_phandle_args in of_dma_find

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Date: Thu,  8 Feb 2024 21:27:42 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Vinod Koul <vkoul@...nel.org>,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/2] dmaengine: of: constify of_phandle_args in of_dma_find_controller()

of_dma_find_controller() does not modify passed of_phandle_args so the
argument can be made pointer to const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/dma/of-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c
index 775a7f408b9a..e588fff9f21d 100644
--- a/drivers/dma/of-dma.c
+++ b/drivers/dma/of-dma.c
@@ -29,7 +29,7 @@ static DEFINE_MUTEX(of_dma_lock);
  * to the DMA data stored is retuned. A NULL pointer is returned if no match is
  * found.
  */
-static struct of_dma *of_dma_find_controller(struct of_phandle_args *dma_spec)
+static struct of_dma *of_dma_find_controller(const struct of_phandle_args *dma_spec)
 {
 	struct of_dma *ofdma;
 
-- 
2.34.1