linux-kernel - [PATCH 1/2] platform/x86: dell-smbios-wmi: Correct a memory leak

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Date:   Mon, 10 Sep 2018 13:01:52 -0500
From:   Mario Limonciello <mario.limonciello@...l.com>
To:     dvhart@...radead.org, Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org,
        Mario Limonciello <mario.limonciello@...l.com>,
        stable@...r.kernel.org
Subject: [PATCH 1/2] platform/x86: dell-smbios-wmi: Correct a memory leak

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

diff --git a/drivers/platform/x86/dell-smbios-wmi.c b/drivers/platform/x86/dell-smbios-wmi.c
index 88afe56..cf2229e 100644
--- 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_device *wdev)
 	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;
 }
-- 
2.7.4