Change in osmo-bts[master]: trx_if: Allow calling trx_if_flush/close from within TRXC callback

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pespin gerrit-no-reply at lists.osmocom.org
Mon Sep 20 17:27:51 UTC 2021


pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/25517 )


Change subject: trx_if: Allow calling trx_if_flush/close from within TRXC callback
......................................................................

trx_if: Allow calling trx_if_flush/close from within TRXC callback

Change-Id: Ic3baa95ffe4e6ca95c6d02276ea8eb0cb9fa0064
---
M src/osmo-bts-trx/trx_if.c
1 file changed, 7 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/17/25517/1

diff --git a/src/osmo-bts-trx/trx_if.c b/src/osmo-bts-trx/trx_if.c
index bfeb2ec..687119a 100644
--- a/src/osmo-bts-trx/trx_if.c
+++ b/src/osmo-bts-trx/trx_if.c
@@ -707,6 +707,13 @@
 
 	rsp.cb = tcm->cb;
 
+	/* Remove command from list, save it to last_acked and remove previous
+	 * last_acked. Do it before calling callback to avoid user freeing tcm
+	 * pointer if flushing/closing the iface. */
+	llist_del(&tcm->list);
+	talloc_free(l1h->last_acked);
+	l1h->last_acked = tcm;
+
 	/* check for response code */
 	rc = trx_ctrl_rx_rsp(l1h, &rsp, tcm);
 	if (rc == -EINVAL)
@@ -718,11 +725,6 @@
 		return 0;
 	}
 
-	/* remove command from list, save it to last_acked and removed previous last_acked */
-	llist_del(&tcm->list);
-	talloc_free(l1h->last_acked);
-	l1h->last_acked = tcm;
-
 	trx_ctrl_send(l1h);
 
 	return 0;

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ic3baa95ffe4e6ca95c6d02276ea8eb0cb9fa0064
Gerrit-Change-Number: 25517
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
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