platform/x86: fujitsu-laptop: do not log LED registration failures

If acpi_fujitsu_laptop_leds_register() returns an error, the latter will
become the return value of acpi_fujitsu_laptop_add(), which in turn will
be reported by driver core.  Simplify code by replacing pr_err() calls
with return statements.  Return 0 instead of result when no errors occur
in order to make the code easier to read.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index c3e8df4..7d0d1e0 100644 (file)
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -724,22 +724,20 @@ static struct led_classdev eco_led = {
 
 static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
 {
-       int result = 0;
+       int result;
 
        if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
                result = devm_led_classdev_register(&device->dev,
                                                    &logolamp_led);
                if (result)
-                       pr_err("Could not register LED handler for logo lamp, error %i\n",
-                              result);
+                       return result;
        }
 
        if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
                result = devm_led_classdev_register(&device->dev, &kblamps_led);
                if (result)
-                       pr_err("Could not register LED handler for keyboard lamps, error %i\n",
-                              result);
+                       return result;
        }
 
        /*
@@ -751,8 +749,7 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
        if (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) {
                result = devm_led_classdev_register(&device->dev, &radio_led);
                if (result)
-                       pr_err("Could not register LED handler for radio LED, error %i\n",
-                              result);
+                       return result;
        }
 
        /* Support for eco led is not always signaled in bit corresponding
@@ -764,11 +761,10 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
            (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) {
                result = devm_led_classdev_register(&device->dev, &eco_led);
                if (result)
-                       pr_err("Could not register LED handler for eco LED, error %i\n",
-                              result);
+                       return result;
        }
 
-       return result;
+       return 0;
 }
 
 static int acpi_fujitsu_laptop_add(struct acpi_device *device)