From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Thu, 6 Nov 2014 13:30:42 +0000 (+0530)
Subject: serial: MIPS: lantiq: use devm_iounmap instead of iounmap
X-Git-Tag: firefly_0821_release~176^2~2678^2~54
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1511316fbd1c690ad0a16324d88fb5ec45d6be36;p=firefly-linux-kernel-4.4.55.git

serial: MIPS: lantiq: use devm_iounmap instead of iounmap

port->membase was allocated using devm_ioremap_nocache, so ideally
we should unmap it using devm_iounmap. but it was using iounmap.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 4675fe198d31..18c3844510ff 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -497,8 +497,10 @@ lqasc_type(struct uart_port *port)
 static void
 lqasc_release_port(struct uart_port *port)
 {
+	struct platform_device *pdev = to_platform_device(port->dev);
+
 	if (port->flags & UPF_IOREMAP) {
-		iounmap(port->membase);
+		devm_iounmap(&pdev->dev, port->membase);
 		port->membase = NULL;
 	}
 }