net: rfkill: gpio: hard-code the gpio names
authorHeikki Krogerus <heikki.krogerus@linux.intel.com>
Tue, 1 Apr 2014 14:02:56 +0000 (17:02 +0300)
committerJohannes Berg <johannes.berg@intel.com>
Fri, 11 Apr 2014 07:29:22 +0000 (09:29 +0200)
There is no need to dynamically generate the names. This
will fix a static checker warning..

net/rfkill/rfkill-gpio.c:144 rfkill_gpio_probe()
    warn: variable dereferenced before check 'rfkill->name'

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/rfkill/rfkill-gpio.c

index 436bffb688682975cf330b2adabcc56d382a3959..9c4a5eb91cbfd6cb806bee19b3a269abc406d6c1 100644 (file)
@@ -36,8 +36,6 @@ struct rfkill_gpio_data {
        struct gpio_desc        *shutdown_gpio;
 
        struct rfkill           *rfkill_dev;
-       char                    *reset_name;
-       char                    *shutdown_name;
        struct clk              *clk;
 
        bool                    clk_enabled;
@@ -89,7 +87,6 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
        struct rfkill_gpio_data *rfkill;
        struct gpio_desc *gpio;
        int ret;
-       int len;
 
        rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
        if (!rfkill)
@@ -106,21 +103,9 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
                return -ENODEV;
        }
 
-       len = strlen(rfkill->name);
-       rfkill->reset_name = devm_kzalloc(&pdev->dev, len + 7, GFP_KERNEL);
-       if (!rfkill->reset_name)
-               return -ENOMEM;
-
-       rfkill->shutdown_name = devm_kzalloc(&pdev->dev, len + 10, GFP_KERNEL);
-       if (!rfkill->shutdown_name)
-               return -ENOMEM;
-
-       snprintf(rfkill->reset_name, len + 6 , "%s_reset", rfkill->name);
-       snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", rfkill->name);
-
        rfkill->clk = devm_clk_get(&pdev->dev, NULL);
 
-       gpio = devm_gpiod_get_index(&pdev->dev, rfkill->reset_name, 0);
+       gpio = devm_gpiod_get_index(&pdev->dev, "reset", 0);
        if (!IS_ERR(gpio)) {
                ret = gpiod_direction_output(gpio, 0);
                if (ret)
@@ -128,7 +113,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
                rfkill->reset_gpio = gpio;
        }
 
-       gpio = devm_gpiod_get_index(&pdev->dev, rfkill->shutdown_name, 1);
+       gpio = devm_gpiod_get_index(&pdev->dev, "shutdown", 1);
        if (!IS_ERR(gpio)) {
                ret = gpiod_direction_output(gpio, 0);
                if (ret)