Commit 17bb6951 authored Mar 10, 2017 by Vipin K Parashar Committed by Michael Ellerman Mar 31, 2017

powerpc/powernv: Handle OPAL_WRONG_STATE in opal_get_sensor_data()

OPAL returns OPAL_WRONG_STATE upon failing to provide sensor data due to
core sleeping/offline. Add a check in opal_get_sensor_data() for sensor
read failure with OPAL_WRONG_STATE return code and return -EIO.

Signed-off-by: Vipin K Parashar <vipin@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 4f9b514b

arch/powerpc/platforms/powernv/opal-sensor.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -64,6 +64,10 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
		*sensor_data = be32_to_cpu(data);
		break;

		case OPAL_WRONG_STATE:
		ret = -EIO;
		break;

		default:
		ret = opal_error_code(ret);
		break;