watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs

These functions return NULL on error but we accidentally check
for IS_ERR() instead.

Fixes: e3c21e088f89 ("watchdog: tqmx86: Add watchdog driver for the IO controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/tqmx86_wdt.c b/drivers/watchdog/tqmx86_wdt.c
index 0d3a0fbbd7a5ddfcedc59a1ce16ec22b8830fba7..52941207a12aba71ea1694b23c1c5765d3a56b8b 100644 (file)
--- a/drivers/watchdog/tqmx86_wdt.c
+++ b/drivers/watchdog/tqmx86_wdt.c
@@ -79,13 +79,13 @@ static int tqmx86_wdt_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-       if (IS_ERR(res))
-               return PTR_ERR(res);
+       if (!res)
+               return -ENODEV;
 
        priv->io_base = devm_ioport_map(&pdev->dev, res->start,
                                        resource_size(res));
-       if (IS_ERR(priv->io_base))
-               return PTR_ERR(priv->io_base);
+       if (!priv->io_base)
+               return -ENOMEM;
 
        watchdog_set_drvdata(&priv->wdd, priv);