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Re: [libvirt] [PATCH] qemu: add return value check



On 09/17/2011 05:06 AM, Eric Blake wrote:
On 09/16/2011 09:51 AM, ajia redhat com wrote:
From: Alex Jia<ajia redhat com>

* src/qemu/qemu_command.c: missing return value check.

Signed-off-by: Alex Jia<ajia redhat com>
---
  src/qemu/qemu_command.c |    7 +++++--
  1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 5f0de40..e8b1157 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1702,7 +1702,8 @@ qemuBuildDriveDevStr(virDomainDiskDefPtr disk,
              virBufferAsprintf(&opt, ",event_idx=%s",
virDomainVirtioEventIdxTypeToString(disk->event_idx));
          }
-        qemuBuildDeviceAddressStr(&opt,&disk->info, qemuCaps);
+        if (qemuBuildDeviceAddressStr(&opt,&disk->info, qemuCaps)<  0)
+            goto error;

ACK and pushed.  I'm assuming you found this with a static analyzer?

Hi Eric,
It seems ccc-analyzer keeps silence for this, so I'm trying Coverity to analyse codes,
the above issues are catched by Coverity.

BTW, I want to apply join coverity-users mail listing, and sent a email to Jeff cc to you & DV, but I haven't received any reply, so I try to find some Coverity resources myself and
run it on libvirt source codes.

Thanks & Regards,
Alex


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