watchdog: xilinx: Remove no_timeout variable

Remove no_timeout variable and check variables
directly.

Suggested-by: Rob Herring <robherring2@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 97370f6..57ccae8 100644 (file)
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -146,10 +146,9 @@ static u32 xwdt_selftest(struct xwdt_device *xdev)
 static int xwdt_probe(struct platform_device *pdev)
 {
        int rc;
-       u32 pfreq, enable_once = 0;
+       u32 pfreq = 0, enable_once = 0;
        struct resource *res;
        struct xwdt_device *xdev;
-       bool no_timeout = false;
        struct watchdog_device *xilinx_wdt_wdd;
 
        xdev = devm_kzalloc(&pdev->dev, sizeof(*xdev), GFP_KERNEL);
@@ -167,19 +166,15 @@ static int xwdt_probe(struct platform_device *pdev)
                return PTR_ERR(xdev->base);
 
        rc = of_property_read_u32(pdev->dev.of_node, "clock-frequency", &pfreq);
-       if (rc) {
+       if (rc)
                dev_warn(&pdev->dev,
                         "The watchdog clock frequency cannot be obtained\n");
-               no_timeout = true;
-       }
 
        rc = of_property_read_u32(pdev->dev.of_node, "xlnx,wdt-interval",
                                  &xdev->wdt_interval);
-       if (rc) {
+       if (rc)
                dev_warn(&pdev->dev,
                         "Parameter \"xlnx,wdt-interval\" not found\n");
-               no_timeout = true;
-       }
 
        rc = of_property_read_u32(pdev->dev.of_node, "xlnx,wdt-enable-once",
                                  &enable_once);
@@ -193,7 +188,7 @@ static int xwdt_probe(struct platform_device *pdev)
         * Twice of the 2^wdt_interval / freq  because the first wdt overflow is
         * ignored (interrupt), reset is only generated at second wdt overflow
         */
-       if (!no_timeout)
+       if (pfreq && xdev->wdt_interval)
                xilinx_wdt_wdd->timeout = 2 * ((1 << xdev->wdt_interval) /
                                          pfreq);