serial: mxs-auart: Remove irq from private structure
The irq number is only used inside the probe function, so there is no need
to keep it in the private mxs_auart_port structure.
Use a local 'irq' variable for storing the irq number instead.
Also make its type of 'int' as platform_get_irq() may fail and return a
negative number.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 1e9fb37..767fdda 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -152,8 +152,6 @@
unsigned int mctrl_prev;
enum mxs_auart_type devtype;
- unsigned int irq;
-
struct clk *clk;
struct device *dev;
@@ -1228,7 +1226,7 @@
of_match_device(mxs_auart_dt_ids, &pdev->dev);
struct mxs_auart_port *s;
u32 version;
- int ret = 0;
+ int ret = 0, irq;
struct resource *r;
s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL);
@@ -1266,9 +1264,9 @@
s->mctrl_prev = 0;
- s->irq = platform_get_irq(pdev, 0);
- s->port.irq = s->irq;
- ret = devm_request_irq(&pdev->dev, s->irq, mxs_auart_irq_handle, 0,
+ irq = platform_get_irq(pdev, 0);
+ s->port.irq = irq;
+ ret = devm_request_irq(&pdev->dev, irq, mxs_auart_irq_handle, 0,
dev_name(&pdev->dev), s);
if (ret)
return ret;