Check select() return value in wpa_ctrl_request()

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

diff --git a/src/common/wpa_ctrl.c b/src/common/wpa_ctrl.c
index 546699b..88d3a02 100644 (file)
--- a/src/common/wpa_ctrl.c
+++ b/src/common/wpa_ctrl.c
@@ -282,6 +282,8 @@ int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len,
                FD_ZERO(&rfds);
                FD_SET(ctrl->s, &rfds);
                res = select(ctrl->s + 1, &rfds, NULL, NULL, &tv);
+               if (res < 0)
+                       return res;
                if (FD_ISSET(ctrl->s, &rfds)) {
                        res = recv(ctrl->s, reply, *reply_len, 0);
                        if (res < 0)