On 03/28/2012 04:20 PM, rmani@xxxxxxxxxxxxxxxx wrote:
> From: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
>
> In current code, Scan request info is recorded in vif->scan_req
> after sending SCAN request to the firmware in ath6kl_cfg80211_scan().
>
> In some corner cases, firmware sends SCAN_COMPLETE event immediately
> when it receives SCAN request, which internally executes scan
> complete event handler ath6kl_cfg80211_scan_complete_event() first.
> So, Scan completion handler will a get a chance to executed even
> before storing scan request info in ath6kl_cfg80211_scan().
>
> Scan completion handler never report SCAN_COMPLETE event to
> cfg80211 if scan request info(vif->scan_req) is NULL. This leads
> to scan failure issue ("Device or resource busy error") during
> next SCAN request from the user space. This patch ensures that scan
> request info is stored before sending SCAN request.
>
> Signed-off-by: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
Thanks, applied.
Kalle
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