platform/x86: alienware-wmi: Correct a memory leak

Mario Limonciello · dvhart · commit ff0e9f26288d · 2018-09-10T13:45:43.000-07:00
An ACPI buffer that was allocated was not being freed after use.

Signed-off-by: Mario Limonciello &lt;mario.limonciello@dell.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart (VMware) &lt;dvhart@infradead.org&gt;
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
@@ -536,6 +536,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,
 		if (obj && obj->type == ACPI_TYPE_INTEGER)
 			*out_data = (u32) obj->integer.value;
 	}
+	kfree(output.pointer);
 	return status;
 
 }

Original file line number	Diff line number	Diff line change
`@@ -536,6 +536,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,`
`536`	`536`	`if (obj && obj->type == ACPI_TYPE_INTEGER)`
`537`	`537`	`*out_data = (u32) obj->integer.value;`
`538`	`538`	`}`
	`539`	`+ kfree(output.pointer);`
`539`	`540`	`return status;`
`540`	`541`
`541`	`542`	`}`