2022-12-16 21:10:26

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: [PATCH v2] shared/gatt-client: Fix not marking service as active

From: Luiz Augusto von Dentz <[email protected]>

If there are no characteristics to discover, or for some reason
bt_gatt_discover_descriptors is skiped, or the last attribute is
actually a included service the service should be marked as
active as there will be no more attributes to be discovered.

Fixes: https://github.com/bluez/bluez/issues/438
---
src/shared/gatt-client.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/shared/gatt-client.c b/src/shared/gatt-client.c
index cf0d2e2b749d..83283110b636 100644
--- a/src/shared/gatt-client.c
+++ b/src/shared/gatt-client.c
@@ -576,12 +576,28 @@ static void discover_incl_cb(bool success, uint8_t att_ecode,
gatt_db_attribute_get_handle(attr), handle);
goto failed;
}
+
+ if (!gatt_db_attribute_get_service_data(attr, NULL, &end,
+ NULL, NULL)) {
+ DBG(client, "Unable to get service data at 0x%04x",
+ handle);
+ goto failed;
+ }
+
+ /* Skip if there are no attributes */
+ if (handle == end)
+ gatt_db_service_set_active(attr, true);
}

next:
range = queue_pop_head(op->discov_ranges);
- if (!range)
+ if (!range) {
+ /* If there are no range to discover mark current service as
+ * active.
+ */
+ gatt_db_service_set_active(op->cur_svc, true);
goto failed;
+ }

client->discovery_req = bt_gatt_discover_characteristics(client->att,
range->start,
@@ -725,6 +741,9 @@ static bool discover_descs(struct discovery_op *op, bool *discovering)
goto failed;
}

+ /* Done with the current service */
+ gatt_db_service_set_active(op->cur_svc, true);
+
done:
free(chrc_data);
return true;
--
2.37.3


2022-12-16 22:05:38

by bluez.test.bot

[permalink] [raw]
Subject: RE: [v2] shared/gatt-client: Fix not marking service as active

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=705220

---Test result---

Test Summary:
CheckPatch PASS 0.40 seconds
GitLint PASS 0.26 seconds
BuildEll PASS 26.35 seconds
BluezMake PASS 766.01 seconds
MakeCheck PASS 11.24 seconds
MakeDistcheck PASS 147.97 seconds
CheckValgrind PASS 239.23 seconds
bluezmakeextell PASS 93.67 seconds
IncrementalBuild PASS 615.21 seconds
ScanBuild WARNING 949.04 seconds

Details
##############################
Test: ScanBuild - WARNING
Desc: Run Scan Build
Output:
src/shared/gatt-client.c:387:21: warning: Use of memory after it is freed
gatt_db_unregister(op->client->db, op->db_id);
^~~~~~~~~~
src/shared/gatt-client.c:616:2: warning: Use of memory after it is freed
discovery_op_complete(op, false, att_ecode);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:919:2: warning: Use of memory after it is freed
discovery_op_complete(op, success, att_ecode);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1028:2: warning: Use of memory after it is freed
discovery_op_complete(op, success, att_ecode);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1220:2: warning: Use of memory after it is freed
discovery_op_complete(op, success, att_ecode);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1285:2: warning: Use of memory after it is freed
discovery_op_complete(op, success, att_ecode);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1556:6: warning: Use of memory after it is freed
if (read_db_hash(op)) {
^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1561:2: warning: Use of memory after it is freed
discover_all(op);
^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:2063:6: warning: Use of memory after it is freed
if (read_db_hash(op)) {
^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:2071:8: warning: Use of memory after it is freed
discovery_op_ref(op),
^~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:3154:2: warning: Use of memory after it is freed
complete_write_long_op(req, success, 0, false);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:3176:2: warning: Use of memory after it is freed
request_unref(req);
^~~~~~~~~~~~~~~~~~
12 warnings generated.



---
Regards,
Linux Bluetooth