ms: Fix timer start condition (Coverity)
Currently the timer can be started even if m_ul_tbf is attached.
Replace m_dl_tbf by m_ul_tbf to only start the timer if _both_ TBF
are detached.
Fixes: Coverity CID 1304683
Sponsored-by: On-Waves ehf
diff --git a/src/gprs_ms.cpp b/src/gprs_ms.cpp
index afbd7b7..f0379ce 100644
--- a/src/gprs_ms.cpp
+++ b/src/gprs_ms.cpp
@@ -239,7 +239,7 @@
if (tbf->ms() == this)
tbf->set_ms(NULL);
- if (!m_dl_tbf && !m_dl_tbf)
+ if (!m_dl_tbf && !m_ul_tbf)
start_timer();
update_status();