git.openwrt.org Git - openwrt/staging/blogic.git/blob

   1 From 3a33bd840523aaa06f4429fbfd38922bf0dc2e8d Mon Sep 17 00:00:00 2001
   2 From: Lo-Hsiang Lo <double.lo@cypress.com>
   3 Date: Mon, 7 Jan 2019 08:46:16 +0000
   4 Subject: [PATCH] brcmfmac: fix system warning message during wowl suspend
   5
   6 There is a system warning message, warn_slowpath-fmt, during suspend
   7 while using supplicant join AP and enable wowl feature by IW command.
   8 It's caused by brcmf_pno_remove_request path can't find the reqid.
   9 This fix will not go to remove pno request function if there is no
  10 pno scan.
  11
  12 Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  13 Signed-off-by: Lo-Hsiang Lo <double.lo@cypress.com>
  14 Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
  15 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  16 ---
  17  drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c | 5 +++++
  18  1 file changed, 5 insertions(+)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
  22 @@ -496,6 +496,11 @@ int brcmf_pno_stop_sched_scan(struct brc
  23         brcmf_dbg(TRACE, "reqid=%llu\n", reqid);
  24
  25         pi = ifp_to_pno(ifp);
  26 +
  27 +       /* No PNO request */
  28 +       if (!pi->n_reqs)
  29 +               return 0;
  30 +
  31         err = brcmf_pno_remove_request(pi, reqid);
  32         if (err)
  33                 return err;