diff options
| author | Hante Meuleman <meuleman@broadcom.com> | 2014-09-30 10:23:17 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-09-30 13:17:47 -0400 |
| commit | 58b2251e96d8230e81f65a0196afc914a17e1806 (patch) | |
| tree | 397cc6fed3ff0b2c044810420520ea3f09fb561a /drivers/net/wireless/brcm80211 | |
| parent | f48556e1b6a60f1b394a6c4b0a7b8cacba3eb107 (diff) | |
brcmfmac: Fix crash on cleanup.
When driver gets unloaded due to error situation there is a chance
a packet gets received while fws has already been cleaned up. This
will result in kernel crash. This patch adds a check to avoid this
crash.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index d42f7d04b65f..183f08d7fc8c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -1636,7 +1636,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, if (!signal_len) return 0; /* if flow control disabled, skip to packet data and leave */ - if (!fws->fw_signals) { + if ((!fws) || (!fws->fw_signals)) { skb_pull(skb, signal_len); return 0; } |