ACPI: bus: Remove the unneeded result variable

Return the value from driver_register() directly instead of storing it
in another redundant variable.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index c0d20d997891c34d69c6397f3f1fcfcc96ab0220..661a63ea32481b25db964082abb2d4b6459a1ed6 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -973,16 +973,13 @@ EXPORT_SYMBOL_GPL(acpi_driver_match_device);
  */
 int acpi_bus_register_driver(struct acpi_driver *driver)
 {
-       int ret;
-
        if (acpi_disabled)
                return -ENODEV;
        driver->drv.name = driver->name;
        driver->drv.bus = &acpi_bus_type;
        driver->drv.owner = driver->owner;
 
-       ret = driver_register(&driver->drv);
-       return ret;
+       return driver_register(&driver->drv);
 }
 
 EXPORT_SYMBOL(acpi_bus_register_driver);