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Subject[PATCH 2/4 v3] serial: vt8500: ioremap'd resource is never freed
Date
Memory mapped via ioremap call is never released. Rather than add an
iounmap call, change allocation function to devm_request_and_ioremap.

Also, change the error on failure for this call to -EADDRNOTAVAIL rather than
-ENOMEM.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
---
drivers/tty/serial/vt8500_serial.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 4c4a58d..3e76dff 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -615,9 +615,9 @@ static int vt8500_serial_probe(struct platform_device *pdev)
snprintf(vt8500_port->name, sizeof(vt8500_port->name),
"VT8500 UART%d", pdev->id);

- vt8500_port->uart.membase = ioremap(mmres->start, resource_size(mmres));
+ vt8500_port->uart.membase = devm_request_and_ioremap(&pdev->dev, mmres);
if (!vt8500_port->uart.membase) {
- ret = -ENOMEM;
+ ret = -EADDRNOTAVAIL;
goto err;
}

--
1.7.9.5


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