[libvirt] [PATCH 09/10] build: silence coverity false positive

[Eric Blake]

Coverity complained that infd could be -1 at the point where it is
passed to write, when in reality, this code can only be reached if
infd is non-negative.

* src/util/command.c (virCommandProcessIO): Help out coverity.
---
 src/util/command.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/util/command.c b/src/util/command.c
index a2f7ff6..b51bdcf 100644
--- a/src/util/command.c
+++ b/src/util/command.c
@@ -961,6 +961,9 @@ virCommandProcessIO(virCommandPtr cmd)
             } else {
                 int done;

+                /* Coverity 5.3.0 can't see that we only get here if
+                 * infd is in the set because it was non-negative.  */
+                sa_assert(infd != -1);
                 done = write(infd, cmd->inbuf + inoff,
                              inlen - inoff);
                 if (done < 0) {
-- 
1.7.4.4