virt_phy: fix wrong pointer being checked

Change-Id: I2f845b0335d2d9818aa15c30f8621acd120e82d4
Fixes: fa833e40 "l1gprs/l1ctl: Decouple RTS.ind from DL_BLOCK.ind"
Fixes: CID#323121
---
M src/host/virt_phy/src/virt_prim_pdch.c
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/host/virt_phy/src/virt_prim_pdch.c b/src/host/virt_phy/src/virt_prim_pdch.c
index 6825ced..3fa7977 100644
--- a/src/host/virt_phy/src/virt_prim_pdch.c
+++ b/src/host/virt_phy/src/virt_prim_pdch.c
@@ -103,6 +103,6 @@
 	 * resulting value is first fn of the next block. */
 	const uint32_t rts_fn = GSM_TDMA_FN_SUM(fn, (fn % 13 == 8) ? 5 : 4);
 	nmsg = l1gprs_handle_rts_ind(ms->gprs, rts_fn, tn, usf);
-	if (msg != NULL)
+	if (nmsg != NULL)
 		l1ctl_sap_tx_to_l23_inst(ms, nmsg);
 }

