RE: fix errors found by SVACE static analyzer #1

[bluez.test.bot@gmail.com]

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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=870085

---Test result---

Test Summary:
CheckPatch                    PASS      1.72 seconds
GitLint                       FAIL      1.62 seconds
BuildEll                      PASS      24.86 seconds
BluezMake                     PASS      1676.91 seconds
MakeCheck                     PASS      13.44 seconds
MakeDistcheck                 PASS      177.44 seconds
CheckValgrind                 PASS      252.49 seconds
CheckSmatch                   PASS      354.53 seconds
bluezmakeextell               PASS      119.97 seconds
IncrementalBuild              PASS      9386.66 seconds
ScanBuild                     WARNING   1001.44 seconds

Details
##############################
Test: GitLint - FAIL
Desc: Run gitlint
Output:
[BlueZ,v2,resend,1/6] gatt: add return value check of io_get_fd() to sock_io_send()

WARNING: I3 - ignore-body-lines: gitlint will be switching from using Python regex 'match' (match beginning) to 'search' (match anywhere) semantics. Please review your ignore-body-lines.regex option accordingly. To remove this warning, set general.regex-style-search=True. More details: https://jorisroovers.github.io/gitlint/configuration/#regex-style-search
1: T1 Title exceeds max length (83>80): "[BlueZ,v2,resend,1/6] gatt: add return value check of io_get_fd() to sock_io_send()"
[BlueZ,v2,resend,5/6] client/player: fix the order of args in cmd_register_endpoint()

WARNING: I3 - ignore-body-lines: gitlint will be switching from using Python regex 'match' (match beginning) to 'search' (match anywhere) semantics. Please review your ignore-body-lines.regex option accordingly. To remove this warning, set general.regex-style-search=True. More details: https://jorisroovers.github.io/gitlint/configuration/#regex-style-search
1: T1 Title exceeds max length (85>80): "[BlueZ,v2,resend,5/6] client/player: fix the order of args in cmd_register_endpoint()"
[BlueZ,v2,resend,6/6] shared/gatt-client: add NULL check to discover_secondary_cb()

WARNING: I3 - ignore-body-lines: gitlint will be switching from using Python regex 'match' (match beginning) to 'search' (match anywhere) semantics. Please review your ignore-body-lines.regex option accordingly. To remove this warning, set general.regex-style-search=True. More details: https://jorisroovers.github.io/gitlint/configuration/#regex-style-search
1: T1 Title exceeds max length (83>80): "[BlueZ,v2,resend,6/6] shared/gatt-client: add NULL check to discover_secondary_cb()"
##############################
Test: ScanBuild - WARNING
Desc: Run Scan Build
Output:
src/shared/gatt-client.c:451:21: warning: Use of memory after it is freed
        gatt_db_unregister(op->client->db, op->db_id);
                           ^~~~~~~~~~
src/shared/gatt-client.c:696:2: warning: Use of memory after it is freed
        discovery_op_complete(op, false, att_ecode);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:996:2: warning: Use of memory after it is freed
        discovery_op_complete(op, success, att_ecode);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1102:2: warning: Use of memory after it is freed
        discovery_op_complete(op, success, att_ecode);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1296:2: warning: Use of memory after it is freed
        discovery_op_complete(op, success, att_ecode);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1361:2: warning: Use of memory after it is freed
        discovery_op_complete(op, success, att_ecode);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1636:6: warning: Use of memory after it is freed
        if (read_db_hash(op)) {
            ^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:1641:2: warning: Use of memory after it is freed
        discover_all(op);
        ^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:2145:6: warning: Use of memory after it is freed
        if (read_db_hash(op)) {
            ^~~~~~~~~~~~~~~~
src/shared/gatt-client.c:2153:8: warning: Use of memory after it is freed
                                                        discovery_op_ref(op),
                                                        ^~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:3242:2: warning: Use of memory after it is freed
        complete_write_long_op(req, success, 0, false);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/shared/gatt-client.c:3264:2: warning: Use of memory after it is freed
        request_unref(req);
        ^~~~~~~~~~~~~~~~~~
12 warnings generated.



---
Regards,
Linux Bluetooth