From: Hanjun Guo <guohanjun@huawei.com>
Date: Wed, 22 Jul 2020 09:54:21 +0000 (+0800)
Subject: dmaengine: acpi: Put the CSRT table after using it
X-Git-Tag: v5.8.10~116
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=36120307971e4a25d4571a0cbd25e1ba7711eee7;p=thirdparty%2Fkernel%2Fstable.git

dmaengine: acpi: Put the CSRT table after using it

[ Upstream commit 7eb48dd094de5fe0e216b550e73aa85257903973 ]

The acpi_get_table() should be coupled with acpi_put_table() if
the mapped table is not used at runtime to release the table
mapping, put the CSRT table buf after using it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1595411661-15936-1-git-send-email-guohanjun@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 8a05db3343d39..dcbcb712de6e8 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -135,11 +135,13 @@ static void acpi_dma_parse_csrt(struct acpi_device *adev, struct acpi_dma *adma)
 		if (ret < 0) {
 			dev_warn(&adev->dev,
 				 "error in parsing resource group\n");
-			return;
+			break;
 		}
 
 		grp = (struct acpi_csrt_group *)((void *)grp + grp->length);
 	}
+
+	acpi_put_table((struct acpi_table_header *)csrt);
 }
 
 /**