Fixed gprs_rlcmac_rcv_data_block() function.
Countdown Value = 0 means, that PCU received the last data block in TBF and we should ignore all next data blocks.
diff --git a/gprs_rlcmac.cpp b/gprs_rlcmac.cpp
index 955b6b3..b0aa4a1 100644
--- a/gprs_rlcmac.cpp
+++ b/gprs_rlcmac.cpp
@@ -550,10 +550,7 @@
 			if (ul_data_block->CV == 0) {
 				// Recieved last Data Block in this sequence.
 				gsmtap_send_llc(tbf->rlc_data, tbf->data_index);
-				if (!((ul_data_block->E_1 == 0)&&(ul_data_block->M[0] == 0)&&(ul_data_block->E[0] == 1)))
-					tbf->state = GPRS_RLCMAC_WAIT_NEXT_DATA_SEQ;
-				else
-					tbf->state = GPRS_RLCMAC_WAIT_DATA_SEQ_START;
+				tbf->state = GPRS_RLCMAC_WAIT_NEXT_DATA_SEQ;
 				gprs_rlcmac_tx_ul_ud(tbf);
 			} else {
 				tbf->bsn = ul_data_block->BSN;
@@ -568,10 +565,7 @@
 			if (ul_data_block->CV == 0) {
 				// Recieved last Data Block in this sequence.
 				gsmtap_send_llc(tbf->rlc_data, tbf->data_index);
-				if (!((ul_data_block->E_1 == 0)&&(ul_data_block->M[0] == 0)&&(ul_data_block->E[0] == 1)))
-					tbf->state = GPRS_RLCMAC_WAIT_NEXT_DATA_SEQ;
-				else
-					tbf->state = GPRS_RLCMAC_WAIT_DATA_SEQ_START;
+				tbf->state = GPRS_RLCMAC_WAIT_NEXT_DATA_SEQ;
 				gprs_rlcmac_tx_ul_ud(tbf);
 			} else {
 				tbf->bsn = ul_data_block->BSN;