diff options
| author | Lior David <qca_liord@qca.qualcomm.com> | 2017-01-20 13:49:48 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2017-01-27 19:49:39 +0200 |
| commit | 4d4c4dc324b4444d40e9164834044feebaf2d72d (patch) | |
| tree | bbcc4458045a7f618c8e60491665637dd4cb2d95 /drivers/net/wireless/ath | |
| parent | 0d2370e939acca97b5e1abc1aedd47c5c9a5f500 (diff) | |
wil6210: missing reinit_completion in wmi_call
The code in wmi_call uses the wil->wmi_call completion
structure to wait for a reply.
In some scenarios, complete was called twice on the
completion structure. This happened mainly with a disconnect
event which can arrive both unsolicited and as a reply to
a disconnect request. In this case the completion structure
was left marked as "done" and the next wmi_call returned
immediately with a corrupted reply buffer. This caused
unexpected results including crashes.
Fix this by adding the missing call to reinit_completion.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/wmi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 0137ac5b9bb3..d30b3fca7749 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -957,6 +957,7 @@ int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, wil->reply_id = reply_id; wil->reply_buf = reply; wil->reply_size = reply_size; + reinit_completion(&wil->wmi_call); spin_unlock(&wil->wmi_ev_lock); rc = __wmi_send(wil, cmdid, buf, len); |