eeepc-wmi: fix confusion between ctrl_param and retval

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index 253070ab963c32c1d4efb38815c03d9aff67f90e..78306bea01f7f3dd987dcd47782387828e6a87e5 100644 (file)
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -164,7 +164,7 @@ static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
        eeepc->inputdev = NULL;
 }
 
-static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *ctrl_param)
+static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *retval)
 {
        struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id };
        struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -184,8 +184,8 @@ static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *ctrl_param)
        else
                tmp = 0;
 
-       if (ctrl_param)
-               *ctrl_param = tmp;
+       if (retval)
+               *retval = tmp;
 
        kfree(obj);
 
@@ -266,14 +266,14 @@ static void tpd_led_set(struct led_classdev *led_cdev,
 
 static int read_tpd_state(struct eeepc_wmi *eeepc)
 {
-       static u32 ctrl_param;
+       static u32 retval;
        acpi_status status;
 
-       status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_TPDLED, &ctrl_param);
+       status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_TPDLED, &retval);
 
        if (ACPI_FAILURE(status))
                return -1;
-       else if (!ctrl_param || ctrl_param == 0x00060000)
+       else if (!retval || retval == 0x00060000)
                /*
                 * if touchpad led is present, DSTS will set some bits,
                 * usually 0x00020000.
@@ -282,7 +282,7 @@ static int read_tpd_state(struct eeepc_wmi *eeepc)
                return -ENODEV;
        else
                /* Status is stored in the first bit */
-               return ctrl_param & 0x1;
+               return retval & 0x1;
 }
 
 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
@@ -343,15 +343,15 @@ static int eeepc_rfkill_set(void *data, bool blocked)
 static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)
 {
        int dev_id = (unsigned long)data;
-       u32 ctrl_param;
+       u32 retval;
        acpi_status status;
 
-       status = eeepc_wmi_get_devstate(dev_id, &ctrl_param);
+       status = eeepc_wmi_get_devstate(dev_id, &retval);
 
        if (ACPI_FAILURE(status))
                return ;
 
-       rfkill_set_sw_state(rfkill, !(ctrl_param & 0x1));
+       rfkill_set_sw_state(rfkill, !(retval & 0x1));
 }
 
 static const struct rfkill_ops eeepc_rfkill_ops = {
@@ -365,10 +365,10 @@ static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
                            enum rfkill_type type, int dev_id)
 {
        int result;
-       u32 ctrl_param;
+       u32 retval;
        acpi_status status;
 
-       status = eeepc_wmi_get_devstate(dev_id, &ctrl_param);
+       status = eeepc_wmi_get_devstate(dev_id, &retval);
 
        if (ACPI_FAILURE(status))
                return -1;
@@ -379,7 +379,7 @@ static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
         * 0x00020000 - 0100000000000000000 - device supported
         * 0x00010000 - 0010000000000000000 - not supported / special mode ?
         */
-       if (!ctrl_param || ctrl_param == 0x00060000)
+       if (!retval || retval == 0x00060000)
                return -ENODEV;
 
        *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
@@ -388,7 +388,7 @@ static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
        if (!*rfkill)
                return -EINVAL;
 
-       rfkill_init_sw_state(*rfkill, !(ctrl_param & 0x1));
+       rfkill_init_sw_state(*rfkill, !(retval & 0x1));
        result = rfkill_register(*rfkill);
        if (result) {
                rfkill_destroy(*rfkill);
@@ -457,15 +457,15 @@ exit:
  */
 static int read_brightness(struct backlight_device *bd)
 {
-       static u32 ctrl_param;
+       static u32 retval;
        acpi_status status;
 
-       status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BACKLIGHT, &ctrl_param);
+       status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BACKLIGHT, &retval);
 
        if (ACPI_FAILURE(status))
                return -1;
        else
-               return ctrl_param & 0xFF;
+               return retval & 0xFF;
 }
 
 static int update_bl_status(struct backlight_device *bd)