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ACPI / utils: Fix memory leak on an error return path in acpi_evaluate_reference()

Message ID 1510208559-36069-1-git-send-email-wangxiongfeng2@huawei.com (mailing list archive)
State Accepted, archived
Delegated to: Rafael Wysocki
Headers show

Commit Message

Xiongfeng Wang Nov. 9, 2017, 6:22 a.m. UTC 
When package.count is larger than ACPI_MAS_HANDLES, buffer.pointer is
not freed before the function returns AE_NO_MEMORY. Fix this possible
memory leak by kfree'ing it.

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
---
 drivers/acpi/utils.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index b9d956c..9282549 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -355,6 +355,7 @@ 
 	}
 
 	if (package->package.count > ACPI_MAX_HANDLES) {
+		kfree(package);
 		return AE_NO_MEMORY;
 	}
 	list->count = package->package.count;