From: SF Markus Elfring <elfring@users.sourceforge.net>
To: kvm@vger.kernel.org, linux-s390@vger.kernel.org,
"Christian Bornträger" <borntraeger@de.ibm.com>,
"Cornelia Huck" <cornelia.huck@de.ibm.com>,
"David Hildenbrand" <dahi@linux.vnet.ibm.com>,
"Heiko Carstens" <heiko.carstens@de.ibm.com>,
"Martin Schwidefsky" <schwidefsky@de.ibm.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH 3/4] KVM-S390: Less function calls in kvm_s390_import_bp_data() after error detection
Date: Wed, 17 Aug 2016 20:10:37 +0200 [thread overview]
Message-ID: <47f88a11-b949-28ed-5589-925888a37574@users.sourceforge.net> (raw)
In-Reply-To: <82b84c9c-38a4-4d17-910f-312668dbae01@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
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 <elfring@users.sourceforge.net>
---
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
next prev parent reply other threads:[~2016-08-17 18:12 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-17 18:02 [PATCH 0/4] KVM-S390: Fine-tuning for kvm_s390_import_bp_data() SF Markus Elfring
2016-08-17 18:06 ` [PATCH 1/4] KVM-S390: Improve determination of sizes in kvm_s390_import_bp_data() SF Markus Elfring
2016-08-18 7:25 ` walter harms
2016-08-18 9:02 ` Julia Lawall
2016-08-18 9:48 ` Paolo Bonzini
2016-08-18 10:52 ` walter harms
2016-08-18 10:55 ` Paolo Bonzini
2016-08-22 12:58 ` Cornelia Huck
2016-08-24 12:10 ` Replacing specific kmalloc() calls by kmalloc_array()? SF Markus Elfring
2016-08-24 15:00 ` Paolo Bonzini
2016-08-17 18:08 ` [PATCH 2/4] KVM-S390: Use memdup_user() rather than duplicating its implementation SF Markus Elfring
2016-08-22 13:02 ` David Hildenbrand
2016-08-22 13:05 ` Cornelia Huck
2016-08-24 15:19 ` Christian Borntraeger
2016-08-24 18:30 ` [PATCH v2 0/2] KVM: s390: Fine-tuning for kvm_s390_import_bp_data() SF Markus Elfring
2016-08-24 18:36 ` [PATCH v2 1/2] KVM: s390: Improve determination of sizes in kvm_s390_import_bp_data() SF Markus Elfring
2016-08-25 16:10 ` Cornelia Huck
2016-08-25 16:45 ` SF Markus Elfring
2016-08-25 17:34 ` Software evolution around scripts for the semantic patch langugae SF Markus Elfring
2016-08-25 17:40 ` Cornelia Huck
2016-08-25 17:54 ` SF Markus Elfring
2016-08-25 18:14 ` Julia Lawall
2016-08-25 18:20 ` SF Markus Elfring
2016-08-25 18:23 ` Julia Lawall
2016-08-25 21:04 ` Cornelia Huck
2016-08-24 18:40 ` [PATCH v2 2/2] KVM: s390: Use memdup_user() rather than duplicating code SF Markus Elfring
2016-08-25 16:11 ` Cornelia Huck
2016-10-03 12:11 ` Geert Uytterhoeven
2016-10-03 12:28 ` SF Markus Elfring
2016-10-03 13:10 ` Geert Uytterhoeven
2016-10-03 13:47 ` SF Markus Elfring
2016-10-03 14:00 ` Geert Uytterhoeven
2016-10-03 14:25 ` SF Markus Elfring
2016-08-25 16:12 ` [PATCH v2 0/2] KVM: s390: Fine-tuning for kvm_s390_import_bp_data() Christian Borntraeger
2016-08-17 18:10 ` SF Markus Elfring [this message]
2016-08-22 12:58 ` [PATCH 3/4] KVM-S390: Less function calls in kvm_s390_import_bp_data() after error detection David Hildenbrand
2016-08-22 13:00 ` Cornelia Huck
2016-08-22 16:56 ` SF Markus Elfring
2016-08-22 19:37 ` Cornelia Huck
2016-08-22 21:17 ` SF Markus Elfring
2016-08-22 21:28 ` Cornelia Huck
2016-08-31 12:29 ` Paolo Bonzini
2016-08-24 15:10 ` Christian Borntraeger
2016-08-27 16:12 ` SF Markus Elfring
2016-08-17 18:12 ` [PATCH 4/4] KVM-S390: Delete an unnecessary initialisation for a buffer variable SF Markus Elfring
2016-08-22 12:59 ` David Hildenbrand
2016-08-22 13:01 ` Cornelia Huck
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