[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 <vi...@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