This commit adds check of sock pointer in dpif_linux_port_get_pid().
If the pointer is NULL, do not call nl_sock_pid().
Signed-off-by: Alex Wang <al...@nicira.com>
---
lib/dpif-linux.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/dpif-linux.c b/lib/dpif-linux.c
index 52c3f65..a88f8aa 100644
--- a/lib/dpif-linux.c
+++ b/lib/dpif-linux.c
@@ -688,7 +688,8 @@ dpif_linux_port_get_pid(const struct dpif *dpif_,
odp_port_t port_no)
/* The ODPP_NONE "reserved" port number uses the "ovs-system"'s
* channel, since it is not heavily loaded. */
uint32_t idx = port_idx >= dpif->uc_array_size ? 0 : port_idx;
- pid = nl_sock_pid(dpif->channels[idx].sock);
+ pid = !dpif->channels[idx].sock ? 0
+ : nl_sock_pid(dpif->channels[idx].sock);
}
ovs_mutex_unlock(&dpif->upcall_lock);
--
1.7.9.5
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