From: Markus Elfring <[email protected]>
Date: Wed, 17 Aug 2016 19:25:50 +0200

The kfree() function was called in a few cases by the
kvm_s390_import_bp_data() function during error handling
even if a passed variable contained a null pointer.

Adjust jump targets according to the Linux coding style convention.

Signed-off-by: Markus Elfring <[email protected]>
---
 arch/s390/kvm/guestdbg.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 8f886ee..f2514af 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -239,7 +239,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
                wp_info = kmalloc(size, GFP_KERNEL);
                if (!wp_info) {
                        ret = -ENOMEM;
-                       goto error;
+                       goto free_bp_data;
                }
        }
        size = nr_bp * sizeof(*bp_info);
@@ -247,7 +247,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
                bp_info = kmalloc(size, GFP_KERNEL);
                if (!bp_info) {
                        ret = -ENOMEM;
-                       goto error;
+                       goto free_wp_info;
                }
        }
 
@@ -257,7 +257,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
                        ret = __import_wp_info(vcpu, &bp_data[i],
                                               &wp_info[nr_wp]);
                        if (ret)
-                               goto error;
+                               goto free_bp_info;
                        nr_wp++;
                        break;
                case KVM_HW_BP:
@@ -273,10 +273,12 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
        vcpu->arch.guestdbg.nr_hw_wp = nr_wp;
        vcpu->arch.guestdbg.hw_wp_info = wp_info;
        return 0;
-error:
-       kfree(bp_data);
-       kfree(wp_info);
+free_bp_info:
        kfree(bp_info);
+free_wp_info:
+       kfree(wp_info);
+free_bp_data:
+       kfree(bp_data);
        return ret;
 }
 
-- 
2.9.3

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