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

Mario Limonciello · gregkh · commit e2d5285b98ef · 2018-09-29T03:06:03.000-07:00
commit ff0e9f2 upstream. An ACPI buffer that was allocated was not being freed after use. Signed-off-by: Mario Limonciello <mario.limonciello@dell.com> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
@@ -519,6 +519,7 @@ 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
`@@ -519,6 +519,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,`
`519`	`519`	`if (obj && obj->type == ACPI_TYPE_INTEGER)`
`520`	`520`	`*out_data = (u32) obj->integer.value;`
`521`	`521`	`}`
	`522`	`+ kfree(output.pointer);`
`522`	`523`	`return status;`
`523`	`524`
`524`	`525`	`}`