[libvirt] [PATCH 3/3] virISCSIGetSession: Don't leak memory

[Michal Privoznik]

This function runs an iscsi command and parses its output.
However, due to the nature of things, virISCSIExtractSession()
callback can be called multiple times. In each run it would
allocate new memory and overwrite the variable where we keep
pointer to it and thus leaking old allocations.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/util/viriscsi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c
index 504ffbd..9c6fde0 100644
--- a/src/util/viriscsi.c
+++ b/src/util/viriscsi.c
@@ -52,7 +52,8 @@ virISCSIExtractSession(char **const groups,
 {
     struct virISCSISessionData *data = opaque;
 
-    if (STREQ(groups[1], data->devpath))
+    if (!data->devpath &&
+        STREQ(groups[1], data->devpath))
         return VIR_STRDUP(data->session, groups[0]);
     return 0;
 }
-- 
2.10.2