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Date: Thu, 9 Nov 2017 14:22:39 +0800 From: Xiongfeng Wang <wangxiongfeng2@...wei.com> To: <rjw@...ysocki.net> CC: <linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>, <huawei.libin@...wei.com>, <hanjun.guo@...aro.org>, <wangxiongfeng2@...wei.com> Subject: [PATCH] ACPI / utils: Fix memory leak on an error return path in acpi_evaluate_reference() 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@...wei.com> --- drivers/acpi/utils.c | 1 + 1 file changed, 1 insertion(+) 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; -- 1.7.12.4
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