[Qemu-devel] [PATCH] kvm_init didn't set return value after create vm failed

[Xu He Jie <xuhj@linux.vnet.ibm.com>]

kvm_init didn't set return value after create vm failed.

And kvm_ioctl(s, KVM_CREATE_VM, 0)'s return value can be < -1, 
so change the check of vmfd at label 'err'.

Signed-off-by: Xu He Jie <xuhj@linux.vnet.ibm.com>
---
 kvm-all.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kvm-all.c b/kvm-all.c
index e7faf5c..70edb39 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -739,6 +739,7 @@ int kvm_init(void)
         fprintf(stderr, "Please add the 'switch_amode' kernel parameter to "
                         "your host kernel command line\n");
 #endif
+        ret = -errno;
         goto err;
     }
 
@@ -797,7 +798,7 @@ int kvm_init(void)
 
 err:
     if (s) {
-        if (s->vmfd != -1) {
+        if (s->vmfd >= 0) {
             close(s->vmfd);
         }
         if (s->fd != -1) {
-- 
1.7.5.4