From b9472a2e3e452c414634b3ccb1ef6c4098878686 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 8 Mar 2017 14:50:17 +0100 Subject: [PATCH] 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 Acked-by: Arend van Spriel Signed-off-by: Kalle Valo --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 7765ad09d793..4e1ca69f6aa1 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -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; -- 2.20.1