dmaengine: xilinx: xdma: Use resource_size() in xdma_probe()

Li Zetao · vinodkoul · commit 90a6c030f506 · 2023-10-04T19:27:51.000+05:30
There is a warning reported by coccinelle: ./drivers/dma/xilinx/xdma.c:888:22-25: ERROR: Missing resource_size with res Use resource_size() on resource object instead of explicit computation. Signed-off-by: Li Zetao <lizetao1@huawei.com> Link: https://lore.kernel.org/r/20230803033235.3049137-1-lizetao1@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c
@@ -883,7 +883,7 @@ static int xdma_probe(struct platform_device *pdev)
 		goto failed;
 	}
 	xdev->irq_start = res->start;
-	xdev->irq_num = res->end - res->start + 1;
+	xdev->irq_num = resource_size(res);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {

Original file line number	Diff line number	Diff line change
`@@ -883,7 +883,7 @@ static int xdma_probe(struct platform_device *pdev)`
`883`	`883`	`goto failed;`
`884`	`884`	`}`
`885`	`885`	`xdev->irq_start = res->start;`
`886`		`- xdev->irq_num = res->end - res->start + 1;`
	`886`	`+ xdev->irq_num = resource_size(res);`
`887`	`887`
`888`	`888`	`res = platform_get_resource(pdev, IORESOURCE_MEM, 0);`
`889`	`889`	`if (!res) {`