diff options
| author | Maya Erez <qca_merez@qualcomm.com> | 2016-06-08 20:07:47 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2016-06-14 16:20:14 +0300 |
| commit | 9c830abe9194871d6d2846f37930ef373356a016 (patch) | |
| tree | 9774b88b4ff9ed514cb4c0774676e55a596b09da /drivers/net/wireless/ath/wil6210/p2p.c | |
| parent | deb85bb1dadf8b4aaa5b33497766dc3f3e4b530e (diff) | |
| download | linux-9c830abe9194871d6d2846f37930ef373356a016.tar.xz | |
wil6210: fix chan check in wil_p2p_listen
In wil_p2p_listen chan is checked to protect against NULL
pointer access only before setting channel = chan->hw_value.
Add a global parameter check to cover all accesses to chan.
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/p2p.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/p2p.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/wil6210/p2p.c b/drivers/net/wireless/ath/wil6210/p2p.c index 1c9153894dca..213b8259638c 100644 --- a/drivers/net/wireless/ath/wil6210/p2p.c +++ b/drivers/net/wireless/ath/wil6210/p2p.c @@ -114,8 +114,10 @@ int wil_p2p_listen(struct wil6210_priv *wil, unsigned int duration, u8 channel = P2P_DMG_SOCIAL_CHANNEL; int rc; - if (chan) - channel = chan->hw_value; + if (!chan) + return -EINVAL; + + channel = chan->hw_value; wil_dbg_misc(wil, "%s: duration %d\n", __func__, duration); |