From: Jung-uk Kim <jkim@FreeBSD.org>
Date: Wed, 8 May 2013 04:01:49 +0000 (+0000)
Subject: ACPICA: _OSI support: Fix possible memory leak
X-Git-Tag: v3.10-rc1~22^2~1
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=3aa2eeacb559e9901153d3b084ade81515b0967e;p=linux.git

ACPICA: _OSI support: Fix possible memory leak

Fixes a possible memory leak in the error exit path introduced by
recent commit 388a990 ("ACPICA: _OSI Support: handle any errors from
acpi_os_acquire_mutex()").

[rjw: Changelog]
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index b15acebb96a1..7e807725c636 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -349,7 +349,8 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
 	return_value = 0;
 	status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
 	if (ACPI_FAILURE(status)) {
-		return (status);
+		acpi_ut_remove_reference(return_desc);
+		return_ACPI_STATUS(status);
 	}
 
 	/* Lookup the interface in the global _OSI list */