From: Dominik Dingel <dingel@linux.vnet.ibm.com>
Date: Thu, 7 May 2015 13:16:13 +0000 (+0200)
Subject: KVM: s390: propagate error from enable storage key
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=14d4a425e7df6aaaa3287108ce191ccb6644c264;p=linux-beck.git

KVM: s390: propagate error from enable storage key

As enabling storage keys might fail, we should forward the error.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 2078f92d15ac..b77dcfe867be 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -821,7 +821,9 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 	}
 
 	/* Enable storage key handling for the guest */
-	s390_enable_skey();
+	r = s390_enable_skey();
+	if (r)
+		goto out;
 
 	for (i = 0; i < args->count; i++) {
 		hva = gfn_to_hva(kvm, args->start_gfn + i);