linux-kernel - [PATCH -next] dmaengine: stedma40: add missing iounmap() on error in d40

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Date:   Tue, 18 May 2021 22:11:08 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <vkoul@...nel.org>, <linus.walleij@...aro.org>
Subject: [PATCH -next] dmaengine: stedma40: add missing iounmap() on error in d40_probe()

Add the missing iounmap() before return from d40_probe()
in the error handling case.

Fixes: 8d318a50b3d7 ("DMAENGINE: Support for ST-Ericssons DMA40 block v3")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/dma/ste_dma40.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 265d7c07b348..e1827393143f 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3675,6 +3675,9 @@ static int __init d40_probe(struct platform_device *pdev)
 
 	kfree(base->lcla_pool.base_unaligned);
 
+	if (base->lcpa_base)
+		iounmap(base->lcpa_base);
+
 	if (base->phy_lcpa)
 		release_mem_region(base->phy_lcpa,
 				   base->lcpa_size);
-- 
2.25.1