dmaengine: of: constify of_phandle_args in of_dma_find_controller()

krzk · vinodkoul · commit 716141d366f4 · 2024-02-23T12:44:08.000+05:30
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@linaro.org> Link: https://lore.kernel.org/r/20240208202742.631307-2-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
diff --git 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;
 

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ static DEFINE_MUTEX(of_dma_lock);`
`29`	`29`	`* to the DMA data stored is retuned. A NULL pointer is returned if no match is`
`30`	`30`	`* found.`
`31`	`31`	`*/`
`32`		`-static struct of_dma of_dma_find_controller(struct of_phandle_args dma_spec)`
	`32`	`+static struct of_dma of_dma_find_controller(const struct of_phandle_args dma_spec)`
`33`	`33`	`{`
`34`	`34`	`struct of_dma *ofdma;`
`35`	`35`