From: Yang Yingliang <yangyingliang@huawei.com>
Date: Tue, 18 May 2021 14:11:08 +0000 (+0800)
Subject: dmaengine: stedma40: add missing iounmap() on error in d40_probe()
X-Git-Tag: v4.4.274~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=985059c7d43c3c6981390f10c527d585eca24c8d;p=thirdparty%2Fkernel%2Fstable.git

dmaengine: stedma40: add missing iounmap() on error in d40_probe()

[ Upstream commit fffdaba402cea79b8d219355487d342ec23f91c6 ]

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@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210518141108.1324127-1-yangyingliang@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 0fede051f4e1c..e6d3ed1de374a 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3715,6 +3715,9 @@ failure:
 
 		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);