linux-kernel - [PATCH 4.18 42/88] platform/x86: dell-smbios-wmi: Correct a memory leak

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Date:   Thu, 27 Sep 2018 11:03:23 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pinzhen Xu <pinzhen.xu@...el.com>,
        Mario Limonciello <mario.limonciello@...l.com>,
        "Darren Hart (VMware)" <dvhart@...radead.org>
Subject: [PATCH 4.18 42/88] platform/x86: dell-smbios-wmi: Correct a memory leak

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mario Limonciello <mario.limonciello@...l.com>

commit affab51082174f60ef71ced8ab5fbe71f00e9ae3 upstream.

ACPI buffers were being allocated but never freed.

Reported-by: Pinzhen Xu <pinzhen.xu@...el.com>
Signed-off-by: Mario Limonciello <mario.limonciello@...l.com>
Cc: stable@...r.kernel.org
Signed-off-by: Darren Hart (VMware) <dvhart@...radead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/platform/x86/dell-smbios-wmi.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/platform/x86/dell-smbios-wmi.c
+++ b/drivers/platform/x86/dell-smbios-wmi.c
@@ -78,6 +78,7 @@ static int run_smbios_call(struct wmi_de
 	dev_dbg(&wdev->dev, "result: [%08x,%08x,%08x,%08x]\n",
 		priv->buf->std.output[0], priv->buf->std.output[1],
 		priv->buf->std.output[2], priv->buf->std.output[3]);
+	kfree(output.pointer);
 
 	return 0;
 }