From: Michał Kępień <kernel@kempniu.pl>
Date: Thu, 5 Jan 2017 14:14:01 +0000 (+0100)
Subject: ata: ahci_xgene: free structure returned by acpi_get_object_info()
X-Git-Tag: v4.11-rc1~130^2~23
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=de2518201e526f4491e5856b9818f5c18684a6a7;p=karo-tx-linux.git

ata: ahci_xgene: free structure returned by acpi_get_object_info()

acpi_get_object_info() allocates the returned structure, which the
caller has to free when the call succeeds.  Free it when appropriate.

Fixes: c9802a4be661 ("ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller.")
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 73b19b277138..c2b5941d9184 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -821,8 +821,10 @@ static int xgene_ahci_probe(struct platform_device *pdev)
 				dev_warn(&pdev->dev, "%s: Error reading device info. Assume version1\n",
 					__func__);
 				version = XGENE_AHCI_V1;
-			} else if (info->valid & ACPI_VALID_CID) {
-				version = XGENE_AHCI_V2;
+			} else {
+				if (info->valid & ACPI_VALID_CID)
+					version = XGENE_AHCI_V2;
+				kfree(info);
 			}
 		}
 	}