linux-kernel - [PATCH 05/15] ACPICA: debugger: dbconvert: free pld

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Message-Id: <3b8dcecd0f2b96bb037e6e433bf60a2e887e6f91.1455857580.git.lv.zheng@intel.com>
Date:	Fri, 19 Feb 2016 14:16:34 +0800
From:	Lv Zheng <lv.zheng@...el.com>
To:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>
Cc:	Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>,
	<linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	Colin Ian King <colin.king@...onical.com>,
	Bob Moore <robert.moore@...el.com>
Subject: [PATCH 05/15] ACPICA: debugger: dbconvert: free pld_info on error return path

From: Colin Ian King <colin.king@...onical.com>

ACPICA commit 23e644670539e23818fa81e2af5e89ad6657e75c

A failed allocation of new_buffer causes a leak of pld_info
because the error return path fails to free pld_info. Ensure
it is freed on the error exit path.

Link: https://github.com/acpica/acpica/commit/23e64467
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: Bob Moore <robert.moore@...el.com>
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
---
 drivers/acpi/acpica/dbconvert.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c
index 9fee88f..68f4e0f4 100644
--- a/drivers/acpi/acpica/dbconvert.c
+++ b/drivers/acpi/acpica/dbconvert.c
@@ -408,7 +408,7 @@ void acpi_db_dump_pld_buffer(union acpi_object *obj_desc)
 
 	new_buffer = acpi_db_encode_pld_buffer(pld_info);
 	if (!new_buffer) {
-		return;
+		goto exit;
 	}
 
 	/* The two bit-packed buffers should match */
@@ -479,6 +479,7 @@ void acpi_db_dump_pld_buffer(union acpi_object *obj_desc)
 			       pld_info->horizontal_offset);
 	}
 
-	ACPI_FREE(pld_info);
 	ACPI_FREE(new_buffer);
+exit:
+	ACPI_FREE(pld_info);
 }
-- 
1.7.10