diff options
| author | Ghanim Fodi <gfodi@codeaurora.org> | 2017-07-09 12:09:11 +0300 |
|---|---|---|
| committer | Ghanim Fodi <gfodi@codeaurora.org> | 2017-07-09 12:09:11 +0300 |
| commit | 5c8cebfbe59a4063f79d3f67bdaea6d88a1b111c (patch) | |
| tree | a8fa530857ad0b52b7af5213c5fdaaa8334472fc /drivers/platform/msm | |
| parent | 3ec8bfc9bb3a1f1a8584074f914c1d92f052b7f1 (diff) | |
msm: ipa3: Protect access to ipa3_qmi_ctx variable by lock
ipa3_qmi_ctx is a global variable that may be accessed by
different worker threads. Protect the access to it
using mutex lock so that the access will be always atomic.
Change-Id: Iaf0c95d66817833c8e8123b12e94a7a01ab8df2c
CRs-fixed: 2056414
Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>
Diffstat (limited to 'drivers/platform/msm')
| -rw-r--r-- | drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c b/drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c index 0269bfba993f..690a9db67ff0 100644 --- a/drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c +++ b/drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c @@ -1177,10 +1177,13 @@ void ipa3_qmi_service_exit(void) } /* clean the QMI msg cache */ + mutex_lock(&ipa3_qmi_lock); if (ipa3_qmi_ctx != NULL) { vfree(ipa3_qmi_ctx); ipa3_qmi_ctx = NULL; } + mutex_unlock(&ipa3_qmi_lock); + ipa3_svc_handle = 0; ipa3_qmi_modem_init_fin = false; ipa3_qmi_indication_fin = false; |