* [FIX PATCH] KVM: Use kvm_kvfree() to free memory allocated by kvm_kvzalloc()
@ 2012-06-19 13:04 Takuya Yoshikawa
2012-06-19 13:10 ` Avi Kivity
0 siblings, 1 reply; 2+ messages in thread
From: Takuya Yoshikawa @ 2012-06-19 13:04 UTC (permalink / raw)
To: avi, mtosatti; +Cc: kvm, yoshikawa.takuya
From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
The following commit did not care about the error handling path:
commit c1a7b32a14138f908df52d7c53b5ce3415ec6b50
KVM: Avoid wasting pages for small lpage_info arrays
If memory allocation fails, vfree() will be called with the address
returned by kzalloc(). This patch fixes this issue.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
---
arch/x86/kvm/x86.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a01a424..6ed5983 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6350,7 +6350,7 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
out_free:
for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
- vfree(slot->arch.lpage_info[i]);
+ kvm_kvfree(slot->arch.lpage_info[i]);
slot->arch.lpage_info[i] = NULL;
}
return -ENOMEM;
--
1.7.5.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [FIX PATCH] KVM: Use kvm_kvfree() to free memory allocated by kvm_kvzalloc()
2012-06-19 13:04 [FIX PATCH] KVM: Use kvm_kvfree() to free memory allocated by kvm_kvzalloc() Takuya Yoshikawa
@ 2012-06-19 13:10 ` Avi Kivity
0 siblings, 0 replies; 2+ messages in thread
From: Avi Kivity @ 2012-06-19 13:10 UTC (permalink / raw)
To: Takuya Yoshikawa; +Cc: mtosatti, kvm, yoshikawa.takuya
On 06/19/2012 04:04 PM, Takuya Yoshikawa wrote:
> From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
>
> The following commit did not care about the error handling path:
>
> commit c1a7b32a14138f908df52d7c53b5ce3415ec6b50
> KVM: Avoid wasting pages for small lpage_info arrays
>
> If memory allocation fails, vfree() will be called with the address
> returned by kzalloc(). This patch fixes this issue.
Thanks, applied to next.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-06-19 13:04 [FIX PATCH] KVM: Use kvm_kvfree() to free memory allocated by kvm_kvzalloc() Takuya Yoshikawa
2012-06-19 13:10 ` Avi Kivity
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