From 3896d810d6fc14f7ea1b52ffd3e31ede56f3f1d7 Mon Sep 17 00:00:00 2001
From: Minjie Du <duminjie@vivo.com>
Date: Wed, 5 Jul 2023 19:39:12 +0800
Subject: [PATCH] dmaengine: xilinx: xdma: Fix Judgment of the return value

commit a68b48afc050a9456ed4ed19d8755e0f925b44e6 upstream.

Fix: make IS_ERR() judge the devm_ioremap_resource() function return.

Fixes: 17ce252266c7 ("dmaengine: xilinx: xdma: Add xilinx xdma driver")
Signed-off-by: Minjie Du <duminjie@vivo.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230705113912.16247-1-duminjie@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 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 5cdb19bd80a7c..e0bfd129d563f 100644
--- a/drivers/dma/xilinx/xdma.c
+++ b/drivers/dma/xilinx/xdma.c
@@ -894,7 +894,7 @@ 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;
 	}