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[PATCH] hwmon: pmbus: ibm-cffps depends on LEDS_CLASS

Building without CONFIG_LEDS_CLASS causes a link failure:

drivers/hwmon/pmbus/ibm-cffps.o: In function `ibm_cffps_probe':
ibm-cffps.c:(.text+0x4f4): undefined reference to `devm_of_led_classdev_register'

This adds the required dependency.

Fixes: f69316d62c70 ("hwmon: (pmbus) Add IBM Common Form Factor (CFF) power supply driver")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
 drivers/hwmon/pmbus/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 08479006c7f9..6e4298e99222 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -39,6 +39,7 @@ config SENSORS_ADM1275
 	tristate "IBM Common Form Factor Power Supply"
+	depends on LEDS_CLASS
 	  If you say yes here you get hardware monitoring support for the IBM
 	  Common Form Factor power supply.