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brcmfmac: Handle status == BRCMF_E_STATUS_ABORT in cfg80211_escan_handler 

If a scan gets aborted BRCMF_SCAN_STATUS_BUSY gets cleared in
cfg->scan_status and when we receive an abort event from the firmware
the BRCMF_SCAN_STATUS_BUSY check in the cfg80211_escan_handler will
trigger resulting in multiple errors getting logged.

Check for a status of BRCMF_E_STATUS_ABORT and in this case simply
cleanly exit the cfg80211_escan_handler. This also avoids a
BRCMF_E_STATUS_ABORT event arriving after a new scan has been started
causing the new scan to complete prematurely without any data.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
zero-colors
Hans de Goede 2017-03-08 14:50:17 +01:00 committed by Kalle Valo
parent 26e537884a
commit b9472a2e3e
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@ -3097,6 +3097,9 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
status = e->status;
if (status == BRCMF_E_STATUS_ABORT)
goto exit;
if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx);
return -EPERM;