[PATCH 5.4 03/90] dmaengine: stedma40: add missing iounmap() on error in d40_probe()

From: Greg Kroah-Hartman
Date: Mon Jun 21 2021 - 12:18:31 EST


From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210518141108.1324127-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 de8bfd9a76e9..6671bfe08489 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3678,6 +3678,9 @@ 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);
--
2.30.2