[PATCH] powernv/opal: Handle OPAL_WRONG_STATE error from OPAL fails

[Vipin K Parashar]

Added check for OPAL_WRONG_STATE error code returned from OPAL.
Currently Linux flashes "unexpected error" over console for this
error. This will avoid throwing such message and return I/O error
for such OPAL failures.

Signed-off-by: Vipin K Parashar <vipin at linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/opal.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2822935..ab91d53 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -866,9 +866,10 @@ int opal_error_code(int rc)
 	case OPAL_NO_MEM:		return -ENOMEM;
 	case OPAL_PERMISSION:		return -EPERM;
 
-	case OPAL_UNSUPPORTED:		return -EIO;
-	case OPAL_HARDWARE:		return -EIO;
-	case OPAL_INTERNAL_ERROR:	return -EIO;
+	case OPAL_UNSUPPORTED:
+	case OPAL_HARDWARE:
+	case OPAL_INTERNAL_ERROR:
+	case OPAL_WRONG_STATE:		return -EIO;
 	default:
 		pr_err("%s: unexpected OPAL error %d\n", __func__, rc);
 		return -EIO;
-- 
2.7.4