linux-kernel - [PATCH v1] drivers: xilinx: Fix Judgment of the return value of the devm_ioremap

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Date:   Tue,  4 Jul 2023 20:04:58 +0800
From:   Minjie Du <duminjie@...o.com>
To:     Lizhi Hou <lizhi.hou@....com>, Brian Xu <brian.xu@....com>,
        Raj Kumar Rampelli <raj.kumar.rampelli@....com>,
        Vinod Koul <vkoul@...nel.org>,
        Michal Simek <michal.simek@....com>,
        dmaengine@...r.kernel.org (open list:XILINX XDMA DRIVER),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/ZYNQ
        ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Cc:     opensource.kernel@...o.com, Minjie Du <duminjie@...o.com>
Subject: [PATCH v1] drivers: xilinx: Fix Judgment of the return value of the devm_ioremap_resource function

IS_ERR() fix devm_ioremap_resource function return judge.
Could you help check it out?
Thank you!

Signed-off-by: Minjie Du <duminjie@...o.com>
---
 drivers/dma/xilinx/xdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c
index 93ee298d5..ad5ff6335 100644
--- a/drivers/dma/xilinx/xdma.c
+++ b/drivers/dma/xilinx/xdma.c
@@ -892,7 +892,7 @@ static int xdma_probe(struct platform_device *pdev)
 	}
 
 	reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (!reg_base) {
+	if (IS_ERR(reg_base)) {
 		xdma_err(xdev, "ioremap failed");
 		goto failed;
 	}
-- 
2.39.0