[libvirt] [PATCH] virnetdevopenvswitch: Don't call strlen() twice on the same string
Commit 871e10f fixed a memory corruption error, but called strlen()
twice on the same string to do so. Even though the compiler is
probably smart enough to optimize the second call away, having a
single invocation makes the code slightly cleaner.
Suggested-by: Michal Privoznik <mprivozn(a)redhat.com>
---
How about this? :)
src/util/virnetdevopenvswitch.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/util/virnetdevopenvswitch.c b/src/util/virnetdevopenvswitch.c
index db01dcf..9283bbb 100644
--- a/src/util/virnetdevopenvswitch.c
+++ b/src/util/virnetdevopenvswitch.c
@@ -207,6 +207,7 @@ int virNetDevOpenvswitchRemovePort(const char *brname
ATTRIBUTE_UNUSED, const ch
int virNetDevOpenvswitchGetMigrateData(char **migrate, const char *ifname)
{
virCommandPtr cmd = NULL;
+ size_t len;
int ret = -1;
cmd = virCommandNewArgList(OVSVSCTL, "--timeout=5",
"--if-exists", "get", "Interface",
@@ -223,8 +224,9 @@ int virNetDevOpenvswitchGetMigrateData(char **migrate, const char
*ifname)
}
/* Wipeout the newline, if it exists */
- if (strlen(*migrate) > 0)
- (*migrate)[strlen(*migrate) - 1] = '\0';
+ len = strlen(*migrate);
+ if (len > 0)
+ (*migrate)[len - 1] = '\0';
ret = 0;
cleanup:
--
2.5.0